Appreciate all the advice to Steve's earlier question re blister question. Just pulled my 25 yr old US Yacht 18 out of Crab Orchard Lake in Southern IL ( really scummy) Cleaned it off and found LOTS of blisters in large areas, not just a few isolated big ones ( Acne vs. a few zits). Is this a DOIY job? I don't have garage space so if I do it, it'll be in my driveway. Don't want to get into something I can't finish. Thanks in advance for your suggestions.Fair Winds to you.