Mine had a 25LA, and if I could get to run well, it would still have a 25LA. The LA hovered it just fine, but mine did not run well at all. I hope yours does better.

As I recall, I was getting well over 12000rpm on a 10x3 APC with the LA, it just had a very poor low end. I never got a good low end needle setting. The FX is over 14000rpm on the same prop, and it has no problems with needle settings.