I realize their are some members that dont want to sacrafice their squish. So on a seperate piston i ramped the entire circumference of the top of the piston that way you can keep your squish band and still have the same effect for Port timing.
I installed that piston and I'm happy to say that I gained 1mph up top. so yes ramping the Piston is a good mod but ramping all the way around the crown is even better.
some may say that will weaken the piston but it does not because most of the pressure is focused on the center of the crown not the outside edges I'll run this piston for a while and report back with how it holds up.