I just took delivery of my Triumph 190 Bay this past Wed. I had them install a Fishmaster T-Top on it. The Triumph boats are made of Roplene a Polyurethane plastic. The dealer recommended having support arms run from each side of the front frame to the console to add additional bracing. My T-top is solid and secure without the braces. I drove home at speeds up to 65 mph for 2 hours. When I arrived home there was no evidence of any loosening. Several people have bought your T-top based on my recommendation and based upon the interest shown on the Triumph Board and also on Tidalfish.com you can expect additional sales as a result. I recently took the boat on vacation to Ocean City, MD. I put it and T-top through rigorous testing. Ran hard through 3 foot seas and the T-top withstood a lot of stress and bone jarring bumps without any signs of loosening or stress. When I was ready to tow it home, it took me less than 10 minutes (in pouring down rain) to lower the T-top down for towing. I will be 70 next November and I do not need any help to raise or lower the T-top.
By the way, the only adhesive recommended by Triumph for the Roplene surface is Rule/Sudbury Elastomeric Sealant. It is available from C.G. Edwards & Co. in Boston, MA.