I don't know 3406e's but pressure checking an aftercooler is pretty easy on some engines. It insures you don't currently have a leak and I would...
Why polyethylene? Wouldn't something more sun tolerant with stretch for shock be more suitable - like nylon?
Don't understand "Painted, so not as low maintenance, " Good Polyurethanes only need to be washed. Most say don't wax. Gel Coat is a PITA in...
I tried it years ago when fuel was high. If you're going perpendicular to the Gulf Stream you will end up just pointing into it and not making...