I am running a high compression, dual mag GPU on a 13x7.5 Alumitech with polymer. I currently have a74" 2 blade narrow Sensenich. I am going to change props tying to get more push. I would like some opinions on whether I should buy two Q-series blades(keep my hub), or I have a chance to buy a 72" 3 blade narrow sensenich. I don't care about top end just push. Which would be better for my needs?