I have a 2006 P4, with a 26P trophy, two holes open, two with med size vent plugs, i am getting 69-70.4 with full tanks (53 ga), gear and one person, with two people, it drops to around 66, this is in the summer time, In the winter with two people i was getting closer to 67.8-68 mph. Best speed so far is 71.2 last fall. I am still playing around with the height, i think i am a little too high right now as I seem to be hitting the rev limiter quite often on morning runs at WOT. Holeshot is good around 3-3.5 seconds to plane over.Jay Law