I sewed a loop onto the tarp to go over the tower pole and then just used a couple of bungees to hold the sides of the tarp to the tower. I will have to fool with this and see what is the best anchor point for the tarp to the side of the tower when the bimini is up. I really is quite sturdy and i don't think we will have any problems with it. I'll follow up in a couple of weeks and let you know how it worked.
Scott
2021 Craz
2007 Mobius LSV
1997 Sea Ray 190