bimini install
I installed a bimini on my Oday 25 - mojo - this summer. What a great purchase it was to keep the Midwest heat out of the cockpit. I bought a standard issue out of West Marine for ~$250. The bimini was, I believe, one of the smaller ones they offer, ~ 3 ft front to back. You are correct, you are going to have to split the top bimini and cover (and zipper) for the backstay. This requires installing a bit of velcro on both pieces. Also, you have to be a bit patient when setting it up as the rear support pole is aft of the backstay with the other two support pieces forward.The bimini does fit under the boom with an inch or two to spare and aft of the mainsheet. (I have a mainsheet traveler installed in the cockpit, not of the end of the boom.) Due to the arc, you may have to pick up the boom a bit when setting up the cover for use. Also, the height is limited; standing up straight in not an option under the bimini. Typically, I use the bimini when anchored. However, if under sail, I tend to keep it a little loose so that I can move it around bit to see the sails.My bimini has a single pivot point - it works okay. Alternatives could be a traveler mounted for the bimini to be able to adjust it fore and aft for a better fit or if needed to move it forward for sailing. This alternative would require a custom setup, costing much more.In summary, the bimini is a excellent purchase to keep out the weather.Good luck.Steve Growcock