I use APC's on most of my planes from .40 to 1.40 size 10" to 18" and have had nothing but good results and above all durability. Chunk those Master Airscrews except for one... the wood Simitar series. These are very similar in shape as the APC but they have one distinct advantage... weight. A comparable APC in a 18" prop weights about 6 oz and a Simitar is about 2.5 oz. Lighter weight means its easy for the engine to spin up. Dont forget to rebalance if you are already on the back side of the C.G. Unless you need nose weight then switching to a composite prop is a good place to make weight rather then using lead.