When I first bought my Z8 new in 2014, it topped out at about 75mph with a 250 Pro XS and a 26P tempest plus. Now that I've put dual Talons and another battery in the back I'm taking forever to get 68mph out of it and its slower out of the hole. Question is, should I raise or lower the JP after putting all of that weight in the back? My prop has since been worked by mark. I used to have all PVS plugs in and now I have all but 1 out to get a good hole shot.