I would use the pylon props "Absolutely"
I ran a q500 w/ttpro40 and the differenve is huge. I pull a good straight speed (660') and turn tighter than any sport prop can. In fact I sling shot out of the corners at 3/4 of the way through them.
My ground RPM is 16,200. I know what TT says is the optimum RPM range but I am sure I am hitting 16,500 in the air and this is the fastest Q500 in our series. I ran a 8.8 x 8.75 at 6000 and 3000 feet both.
I dont recall my lap times but it is quite fast. Im not familar with the Tower engines, but if you can get 16 on ground, you will do fine with a pylon prop. It will yield you happy times.