I have owned and operated a Queenair for ten years and spent many hundreds of hours flying it up north. I have treated it like "tinpis" said like a bucket of nitro-glycerine and got full life out of my engines.
Smooth and planned power reduction is the key to long engine life and i have never babied it on take offs either, pushing 48 inches every time reducing it to 45 only with the gear cuming up. It is good to know you have every horsepower there when you need it. Never beleived in reduced power take off in a piston.