Re: Just got a GS-201
That is probably not a bad price for a custom cover. I was quoted $1400 for my SD 217 by a local gal using Sunbrella fabric. It was a little too high for me, so I went with an Endura Cover that I bought right here from IBoats. I've been very happy with the Endura cover. It cost around $450 on sale, and was a custom fit design for my boat, so the fit was excellent except that they didn't make allowance for the optional ski pylon that we had added. I had the cover modified to accomidate the ski pylon for $50 locally, and now the fit is perfect. I don't remember what fabric the Endura cover uses, but it is not thick. It did come with a 5 year warranty. In fact, it is fairly thin and light weight, but is waterproof, but breathable (you definitely want a breathable cover to help prevent mold.....that is why you can't just strap down a tarp).
A custom made cover is ideal, because you can get it to come down lower on the sides, or however long or short you want it. My one complaint with the Endura cover is that is comes just past the rub rail, but no further. You might want to go through the list of covers here on IBoats site to see if they have a custom cover for your boat.