Funny you mentioned that. I think it's actually cheaper by a factor of x3 for me to go with Perfect Pass, vs Smart Tow as an adder on option even though I own a MerCruiser. I'm looking into the PerfactPass StarGazer system now. Looks like something I can probably install myself in about 3 hours. For the amateur wakeboard, waterskiier like me; looks like about all I'd need. I've heard they may be temptermental with the pro sloalom skiers with magnets on boeys and such, but we're nowhere near that sophisticated...