FWIW, I used closed cell foam tape, as used for insulating around door, etc.
Just as an aside, you might go back a couple years in the posts, if you have the time. It's amazing what you don't know you don't know, and the answers will be there. (Sorry, shades of D. Rumsfeld). I bought a TR6 a while back, and spent a couple evenings just powering thru old threads. Learned a lot, and very entertaining!