10 hours ago, 10,000 lakes Bassin said:

Thanks everyone. I’ll go with Tatsu for my normal stuff but I might try a small spool of gold label for big baits just to see how I like it.

Assuming you still have those spools of Sniper, you should consider sending them in to see if they are actually, defective. Would be really cool to send them to Sunline, but also save some to have someone independent test.

How old were the spools? Were they normal or bulk spools?

SUNLINE America Co., Ltd.

Warranty

Line performance can be affected by a wide range of factors besides the actual line. These factors include exposure to heat, ultra violet rays, rod guides and knots used. Type of knots used with parti

As you can see, in 2025, they changed the formula for FC Sniper, the more impurities "yellow tint" you remove from a fluorocarbon line, the weaker it gets typically, one has to wonder if this wasn't the cause, but that would depend on if you had the old or new, etc...

Now you have me curious lol, like a d**n cat chasing a lazer pointer sometimes lol

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The History of FC Sniper: The Fluorocarbon Line That Rede...

If you’ve fished bass seriously over the past two decades, there’s a good chance you’ve had a spool of Sunline FC Sniper on your deck, or you’ve been outfished by someone who did! Since its debut in 1

21 hours ago, Team9nine said:

On paper - yes. In practice - meh.

It pretty much depends on your exact circumstances. I use regular mainline as leader material because I have no unique situations requiring otherwise.

^ I use 12lb Sunline FC Leader for my dropshot rig and yet this is ultimately how I feel. In my case there's a couple of spots where I'll throw my dropshot that get a lot of grass and brush in them at certain parts of the year and I've tried a lot of different lines as a leader line and found this one did noticeably better in that scenario and wasn't breaking off on me while all of the others I tried would. That said I also picked up a spool of 12lb Yo-Zuri T7 and will use that on my other spinning setups that I don't really use in those spots and it's been fine. So my answer is it can be and it might not be and ultimately it comes down to what you are trying to do and where you're doing it.

One last thing I'd mention is I haven't actually tried the most expensive options like Seaguar Gold Label or Grand Max. That was actually going to be my next stop if the FC Leader wasn't enough but in my case it has been enough for me and I can usually go a few weeks before I need to change the leader out. I suppose tournaments are another thing to consider and while there might not be 'much' of an improvement that slight improvement might be the difference between cashing a check and going home empty handed.

On 2/8/2026 at 4:40 AM, Peninsular said:

If bite offs are a concern, P-Line Shinsei is the "hardest" fluoro I have ever seen, it's also the stiffest by a decent margin.

I use it to make my leaders for fly fishing Muskies when I want a longer leader, but still want to turn over a fly the size of my fore-arm. That crazy amount of stiffness aids in turning over the flies... I still use wire for a bite guard, but if I wanted to run a fluoro bite guard for toothy fish, Shinsei would hold all 3 of the top 3 spots for that sort of thing ranking wise in my book... Have many Friends that now use it as bite guards for Muskies out East, where fluoro is more logical than our Midwestern strains of Muskies that are more prone to biting through fluoro at times...

If you can get around the stiffness, I guarantee you would have the least amount of bite-offs using that stuff, it's the best fluoro bite material currently in existence...

Red Label & Abrazx are two of the least abrasion resistant fluoro materials in existence today... You could go with just about any other fluoro and get more resistance to bite offs. Invizx is even more abrasion resistant than both of them... I really truly do not understand why a company with the pedigree that Seaguar has, even sells Abrazx... Baffling.

I only had issues with pickerel when using Red Label or InvizX. Every leader material had very few if any bite offs through the entire year.

I think you're the first person ive talked to that has used it, and or remembered the name. I had gotten a couple spools of 10 and 15 right after it came out.

Its definitely the hardest FC I've ever used. I used to use it with pencils, catch 2k, and other twitchin/walking baits. You could hit it pretty hard and the line wouldn't foul on the belly hook of the plug.

I used it to throw tin at blues and bass. It was stiff enough to minimize twisting.

For the most part I really liked it, but there were some attributes I didn't love.

It wasn't the best knotting line. For connection knots you really to put pressure on it completely seat.

The other was the dia. Just holding it hand, its noticeably thicker than Blue Label and wouldn't get down as fast.

When using long leaders that go into the spool, it would jump when pressure was taken off. I just used shorter leaders.

Lastly, the stiffness could have a negative effect on lighter subtle baits.

I was carrying 3 different FC leader materials in my bag, blue label, HD Carbon and Shinsei, so I wanted to phase 1 out, which wound up being Shinsei.

5 hours ago, GetFishorDieTryin said:

I only had issues with pickerel when using Red Label or InvizX. Every leader material had very few if any bite offs through the entire year.

I think you're the first person ive talked to that has used it, and or remembered the name. I had gotten a couple spools of 10 and 15 right after it came out.

Its definitely the hardest FC I've ever used. I used to use it with pencils, catch 2k, and other twitchin/walking baits. You could hit it pretty hard and the line wouldn't foul on the belly hook of the plug.

I used it to throw tin at blues and bass. It was stiff enough to minimize twisting.

For the most part I really liked it, but there were some attributes I didn't love.

It wasn't the best knotting line. For connection knots you really to put pressure on it completely seat.

The other was the dia. Just holding it hand, its noticeably thicker than Blue Label and wouldn't get down as fast.

When using long leaders that go into the spool, it would jump when pressure was taken off. I just used shorter leaders.

Lastly, the stiffness could have a negative effect on lighter subtle baits.

I was carrying 3 different FC leader materials in my bag, blue label, HD Carbon and Shinsei, so I wanted to phase 1 out, which wound up being Shinsei.

Yeah, the only knots I am tying with it are a perfection loop as my entire leader system loop/loop connects and I am only using 30"-40" in length at a time with about a foot of 40 pound wire off the front. I run 40 pound Shinsei as well in this system.

The only attribute that makes it better for my application than say Blue Label is it's much much stiffer.

Blue Label is great stuff, just like the Shinsei better for this specific application.

Another good one is Cortland XTR, it's more like Blue Label in characteristics. Before I found Shinsei I primarily used Blue Label and the XTR in 40 pound for my Predator leaders.