I had the similar problem with my dp ultimate 40 size. When I finally got them to equal throws on both high rate and low rate, swithing to high rates the flat spins were totally awsome, very flat, and I was able to idle in a flat spin until one day I didn't pull out soon enough and add throttle, and I tore the bottom out of the plane, but to answer your question, yea you will see an improvement in all your high rate manuvers if they are exactly the same.