I want a TC with around 2500 stall speed. I know the PI is the top, I just want to drop that kind of cash so I have been considering the slp stall. Does anyone have any quantitative data regarding time improvements from the slp TC. I am also considering the turbine tech. TC that WS6 is using . . . any words on it ?? I know it is a 12", again, I'm looking for some data. I not totally set against the PI yet either . . .