Well, I'll have to agree with yall on this one, but I still have some input you might consider. I like the look of wooden props, but as stated above they hate to touch the ground! APC is by far, IMHO the best performer (in small to mid sized glow and small gas engines), but if you want all out durability for training I think the master airscrew, and dynathrust are good choises. The tip dosen't chip off as bad as APC on those hard first landings.Master airscrew K series, and Dynathrust are also good choices for scale looks on a cub or something similar when performance is not such a big deal. Not the rule, just some of my humble opinions.