I had to disassemble and re-fit the suit from the waist up shortly after I bought it in February, as it was a good 2" too long in the waist for me. This was an interesting design challenge, as the suit is raglan-sleeved. Somehow, one side of the collar ended up 1/4" higher than the other, and I hadn't had a chance to go back and fix it.
Fixing it proved to be more than simply picking out the zipper and re-stitching it (I thought I'd stretched one side slightly when installing it); it turned out the top edge of one front panel had to be shaved down, and then I had to re-stitch the top 4" of zipper. This is patent-finish coated black spandex with a BRIGHT SCREAMING RED zipper, so mistakes would be obvious. I was smarter this time around and hand-basted the whole works instead of pin-basting, and I *still* ended up redoing one side 3 times. I finally hand bar-tacked the neckline seam of the uncooperative side to match the side that went in smoothly, then let the stretch of the spandex ease the remainder onto the zipper tape as I stitched it. Then, finally, I could stopstitch the thing down.
Unpicking was always challenging, because I'd copied the original stitching by using black top thread and red bobbin thread *which blended into the zipper tape perfectly* when I needed to find it to pick out a bad seam.
In any case, it's done and I'm happy with it. I even had time to go back and move the straps on one of the Liberacicus bracers.