As far as the quality of the two boats, they are almost identical. They go down the same line at the manufacturer using predominately the same components. Where Moomba cuts cost is in the creature comfort area. Its interior isn't quite as plush as the Supra's. They use a different stitch pattern for look, and they come standard with less options then the Supra. But as far as quality of boat... they are both top notch. If they is anything else I can answer for you get in touch with me via email at
ClubRoyale@ClubRoyale.net or by phone (248)681-9100. Hope I helped
Brett Watson
Club Royale Marina