Re: pontoon dents
A boat is not a fender, you can move the metal in a fender quite a bit with your finger, try that on a boat, not so much.
The aluminum is much thicker and also to work out a dent you need to access the backside and push it out also not going to happen.
The only way to get a dent out of a pontoon is to drill a hole, holes, and use a dent puller, you need access to a welder to fill the hole, a sander and several grits of paper and you will more than likely end up with a big shiny mess that has 30 little dents instead of one big one.
Same with the scratches, you can sand and buff them out but now that spot is really shiney and will never match the rest of the tube so it really is best to just forget you saw them.
I was the lead repair guy at Bennington for 14 years so I have tried about everything you can thing of.