Hi, I'm going to buy a bimini top and I have a couple questions. My boat is a 1986 Chaparral 178XL open-bow. 16'6" centerline length, 86" beam.<br /><br />There are different heights to the tops I've seen, why? Is it so that you can walk under them? <br /><br />They ask for "width" when you order a top. I'm assuming that is for the width of the top, but what do you use to determine that? The beam? That would seem to make sense, but I haven't seen it spelled out anywhere.<br /><br />I was reading a bit about sharkskin and that seems to be a good choice. Lots of colors available, but it seems like white might be the best option, to reflect the heat. Has anyone had experience with the darker colored bimini tops getting hot?<br /><br />Thanks for your help.