If this is the result of the blades having varying amounts of stiffness and knowing that prop loads are not linear, they are going flex different amounts at different rpm. You would end up chasing your tail towards the end of the rainbow. If it is the result of the back of prop hub not being flat in the same plane as the blade tips, you could come close to getting it right with a little careful sanding on the rear of the prop hub. I'm sure others are more "experter" than I am on this though.