wet sanding question
So I have my boat winterized and all disasembled for my big winter project. I'm planning on wet sanding the complete boat inside and out. My question is which paper to start with. At the beginning of the season I used 3m Imperial compound with my Makita and had good results except for the upper rail. Its hard for me to really get the buffer in between the lip above the rail. My boat is all white with a black stripe. Should I start with a 1500 and work down if it dosn't cut it? And what tricks do you do to get in the tight spots with the rotary?
My rear transom is a different story its definately going to need a good wet sand since I buffed on it for a very long time and still couldn't get it real shiny. I think I'll start with a 1000 grit and work up from their. I plan on going 1000 1200 1500 2000? Is that good? Then plan on 3m imperial and then polish with Finesse it.
I wet sanded my fenders last night as a test. My big question is how much preasure do I apply and for how long? I saw a decent amount of white gel coming off. I had medium preasure on paper and went in different directions each grit. The last thing I want to do is take too much gel off and damage it. I realize you always start out with the most least aggressive application but any other tips would really help. Thanks