Tommy, I have a Mobius LSV, but have ridden behind a couple SSVs. If you're not going W2W, I would suggest 65' and 22 or 23 MPH. And, the progressive edge tips can't be over emphasized. Don't try to jump, push or anything, just ride through the wake, applying more and more edge and you'll clear the wake without effort at that speed and lengths. Once you get the hang of it, it'll be come second nature and you can increase the rope length and speed. I started this season (after a season behind an I/O) at 70' and 22 MPH casing the wake and very frustrated. Increased the speed a little and shortened the rope until I got the mechanics of the edge. Now I'm going W2W (w/ grabs) at 70' and 24 MPH. Good luck!
By the way, if you have Waketrix or know someone that does, watch it! Their tips on initial W2W jumps are great.