Wondering how other people are weighting their X-15, how fast they go, and what rope length. Right now i'm at 65', 22mph, and have a 500# sack slightly back from the bow (next to driver sort of) and a 500# sack on the floor in front of the back seat and the stock ballast full. Ussually about 1000# or so of people. Any other thoughts and opinions would be appreciated. and, while I have your attention, i need to figure out how to get some slack in the rope so I can do a handle pass on a HS FS 360.