Just doing the tubes on the buckles this morning and the T shirt is working a treat, would have lost the first ten pieces fur shur. With the smooth fabric of the shirt, when I drop a piece it just sits where it drops.
I pick up the tube with the clamping tweezers, the buckle with needle nose tweezers, insert and glue with thin SG. I found if I put a bunch of both out on the shirt I can pick the longest buckles for the tubes. Some of the buckles are parts of a mm longer than others, as well as my cutting of the tubes. The tubes that are just a bit long I file down with a micro file before inserting and gluing. Working out well so far. I,ve gotten 30 done in less than an hour!
I sailor on.