Viper 340 has ringo..I've used it and it works great on outdrives with minimal elbow grease. It also works on sportmaster drives too.

Mintish, I was and still am sceptical about what it does to the gel coat. I can tell you for sure that it works really good for caked on buildup on the drive. I do rinse it very well after application. I mostly use it for the prop and SS stuff. After 1 weekend or 2 at the lake, the prop looks like satin finish. Spray it on and rinse it off, that's it.
I bought Ringo last year from Viper 340 for the hull and it works good also, just not as handy for the prop and steering.

I use use ringo on the hull too. Works great, I just don't like it on the stainless. I've seen people use the snow bowl type cleaners on their hull and the more they used it, the more often they needed to use it.

Mintish... the clr is not wasted, use it on your exhaust tips. Does a great job on water spots. I use a powder called slimey grimey for hull stains. Mild, works great and won't harm your trailer. Muratic acid will wreck a trailer in short order.

Nice panther you have there.... as you can see below, I am a panther fan

Dave

I can post'em, I jus' can't read'em. Too cheap so far to get a star next to my name.

Bob