I found some double sided carpet tape at Harbor Freight to re-attach my shrunken leader, lol. My old one must have been attached with a thick glue of some sort. I started to scrape it but it was not going to come off. I did try a little bit of acetone but it was difficult to let it soak in and didn't seem to affect it anyway. So I just left it because I didn't want to make a mess with chemicals/solvents and scrape up my bars. I did follow the weld line to lay the tape. It does hold the canvas very well.
The tape is: Roberts Max Tape, 1-7/8" x 75'