Hi Captchj and welcome to Triumphowners.net. And thank you too for joing our Captains Club! I think you may hold the record for the quickest Captains Club membership purchase after registering on the site.
It is appreciated.
Regarding cleaning Roplene....check out these posts:
Blood Stains on Deck
Cleaner for Roplene
Boat cleaning
Can't get these tiny black spots off my boat
pressure washer
Cleaning tips
Boat cleaning product
There are several others and you can find them by using the search tool in the menu bar above or in the SuperSeach module on the home page. I use Simply Green and a soft brush and every few weeks I'll pull out the power washer (great to have for a number of home projects) and wash it down with that.
I would also suggest doing a search on the hull deflection issue. Did you purchase the boat from a dealer or directly from an owner? And did you transfer the lifetime hull warranty from the previous owner if you bought it used? If you have a dealer nearby you should take it to them to let them take a look. Getting the correct bunk setup on your trailer is real important and the dealer should be able to help with that too. I posted bunk schematics from Triumph in each of the boat forums last week. The only one I could not get a schematic for was the 150. If necessary the dealer should be able to assist you in contacting Triumph regarding the hull warranty to make it right. I cannot understate the importance of developing a good working relationship with a reputable dealer.
I'm sure some other members will jump in here with some ideas too. Again, welcome aboard!