I've got a bimini
My 28.5 has a bimini,and in the heat of the day it is my favorite accessory onboard. The boom does clear it nicely on all points of sail. Folding it and unfolding it sometimes means tightening the topping lift or swinging the boom out. This is because the arch of the forwardmost frame of the bimini is greater than the height of the canvas once it is set. I hope that makes sense. Anyway, once you see how it works putting it out or taking it in takes only seconds. Of course you can't stand at the wheel when it is up, and it is right overhead when folded away (because of the split backstay). This means that it is slightly in the way when standing directly behind the wheel. I have found that you get used to it, but when I first bought the boat this troubled me. Now when I am standing at the wheel I usually stand to one side or the other, visability is better and it keeps me from rubbing my head on the bimini. My wife has none of these problems, she's 5'2". I'm 5'11". Good luck I hoped this info helped.