I have read a bunch of good things on these impellers, and I finally scored a new one today at a great price. I havea few questions tho. Are they still alright for rec riding or more of a freestyle prop and thats it? I wanted the 9/15 but ended up with a 10/16 so it should be fine. It will be going in my FX1 that i have stripped at the moment. Anything I should know about these props, good or bad? Thanks for any insight