I just got this after market spool for '20 Metanium from KKR. I have to say its quality exceeds my expectation. 

First of all, the packaging is quite assuring. It's the first time I received a spool packed in a metal barrel, then packed in a thick foam box.

 

 

the spool only weighs 5g, with a 5x11x4 bearing on it, so the spool itself would probably weigh around 4g. I was worried about how sturdy the spool would be, but it's quite solid for that kind of light weight.

 

 

The quality of the spool is quite nice, given its $50 low price. The tolerance is rather impressive - the picture probably won't show it, but the tiny gap between the spool edge and reel frame is even smaller than the stock spool. 

 

 

The spool requires two SVS brake beans from the stock spool, but it does provides other tools to assemble them. It's a process that requires patience and good eyesight, but it's manageable. 

 

 

The spool can hold about 80 yards of 20lb Sufix 832, which is similar to the shallow version Metanium spool line capacity. With its super lightweight, it should be able to handle BFS tasks without problems, but I personally would use it for general finesse lures, as I don't like centrifugal brake for BFS reels. 

 

The only complaint I have so far is the bearing it comes with.  It's a nice quality Japanese bearing from NMB, but it's packed with grease from factory. You must flush it first, otherwise it kind of defeat the purpose of having a lightweight spool. 

 

KKR also makes an SV spool (moving inductor) for Daiwa.  An FFR member who has tried it and reported on Another Spin page really likes it - it solves the start-up jerk problem that fixed-inductor Daiwa BFS spools like AMO and Roro can't fix.  

 

The big difference though is the weight - KKR SV spool (also Ray's SV spool) double the weight of Roro and AMO spools (4 g) - the latter are an advantage casting the lightest weights to the greatest distance, and they should be reserved for those niches.  

5 hours ago, bulldog1935 said:

KKR also makes an SV spool (moving inductor) for Daiwa.  An FFR member who has tried it and reported on Another Spin page really likes it - it solves the start-up jerk problem that fixed-inductor Daiwa BFS spools like AMO and Roro can't fix.  

 

The big difference though is the weight - KKR SV spool (also Ray's SV spool) double the weight of Roro and AMO spools (4 g) - the latter are an advantage casting the lightest weights to the greatest distance, and they should be reserved for those niches.  

 

This one's weight (~4g) is perfect for any BFS lures, down to 1g trout magnet, but it's a centrifugal brake system. TBH I don't find centrifugal brake forces stable enough for BFS lures. 

In the case of SV spools, the moving inductor mechanism adds about 3 g to a spool, and the rotating mass you added also adds to the 4 g.  

If you're sticking to casting BFS light weight, I can recommend Roro bearings, which are relatively inexpensive and even better, they ship by post from Hong Kong.  

In cast distance trials with Daiwa's shielded microbearings, KTF/IXA double (high-load) BFS bearings, Roro has about a 10% edge over the 2nd-best KTF.  

 

1 hour ago, bulldog1935 said:

Roro has about a 10% edge over the 2nd-best KTF.

 

That is interesting. Thanks I'll give it a try next time.

I was going to ask for a link to get one, until I saw the size of those wire springs..