One classic technique used by us with pattern planes years ago was to run a little lower pitch prop on the ground and tune the engine and pipe for that. Then you put the higher pitch prop on to go fly it. The prop then unloads in the air and comes up on the pipe. That gets you really close to optimum on the ground then. In my example I used a 11x6 prop on the ground tuning and switched to a 11x7 prop for flying. The engines when they come up on the pipe get that power boost quite quickly then you need to richen them up quite a bit as if you don't the engines wind up being too lean then. That can lead to the problem where the engine is too rich on the ground to get airborne and unload the prop enough to come up on the pipe.