When i started flying my trainer i was using a APC. Boy did i go through alot of them. You just barely hit the runway and that prop shatters everywhere. After about 5 props i switched to MasterAirscrew. I can hit the runway with these things and they just need alittle rebalancing. They take a lick'in and keep on turning. I'm better now and don't hit near as often but i have maybe 20 times more flights than the APC's and am only on my 2nd prop. Lov'in for training.

skeeter