Supra LSV??? Do you mean Moomba LSV or Supra SSV...or is there a boat I haven't heard of
. Demo those boats in the exact configuration you want and decide for yourself. If the dealer isn't accommodating....MOVE ON!
I run a VLX with absolutely no visable weight and virtually none of my storage space is used. The wake is knee to mid thigh high (depending on the rider) and can be rampy or vert depending on your liking. However I do tow an additional 700#'s (lead) and my locker sack is larger than stock. All totaled I'm running 1900#'s + wedge.
All three seem to be capable of great wakes with little or no visable ballast.