I've been toying with the idea to move on from my high vis yellow sx1 15lb braid to stealth gray SmackDown in 10lb. This would be for a finesse setup and it's would go on a tatula LT 4000 on a nrx 85s. My thought process behind the 10lb was that I could may go to straight braid on some applications. My question is has anybody used SmackDown in 10lb ? I just put several spools of 30lb on my casting reels and am shocked at how thin it is. Does anyone have any pros/cons to from SmackDown to sx1 either ? 

10# Smackdown is super skinny.  A large arbor reel like a Tat 4000 would give great casting distance with light baits using at least 15#. The stuff is JDM dia. like Sunline.

Knot strength going to be weaker than its rated strength thats for sure. Likely get 6-7 pound knot strength if that with palomar, uni, fishnfool.

Your 30# line is good to low 20's knot strength.

1 hour ago, QUAKEnSHAKE said:

Knot strength going to be weaker than its rated strength thats for sure. Likely get 6-7 pound knot strength if that with palomar, uni, fishnfool.

Your 30# line is good to low 20's knot strength.

Have you tested this?

Used it for a short time on a spinning reel as my river-wading-smallie line. It's diameter is crazy thin, which is good until you get a good hit and rock out an overly powerful hookset......I broke on the hookset 4 times. Just popped it like nothing. So I had to switch to a reelset. Went home, ordered the 15lb - found the diameter difference was barely noticeable and never had another hookset break. 

 

Might be worth it to up the strength a notch, especially on a casting reel. 

7 hours ago, Yumeya said:

Have you tested this?

yes

I also have 40# and its knot strength isnt close to rated strength. 

For its diameter it pretty consistent with other lines of equal diameter. Example: 20# PPS8S @.009 breaks low 20's and 30# Smackdown @.009 breaks low 20's. 

So with smackdown compare it to other lines of equal dia not rated strength.

How about with a FG knot?

Never have tied the FG knot, dont use leaders.