again, I'm late to a party...earlier in this thread you guys were talking about glue to hold the FO in place. One of you mentioned the UV stuff, but I didn't see a follow up. That see on TV stuff, Laser Bond has worked quite well for me. It also works well in spots where you can't get a clamp where you want one. a few strategic drops here and there while you hand hold you piece and most times it stays put except for really uncooperative pieces, but that's rare.
JMO
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BTW, I love the idea of the extra FO sticking out and cutting it back AFTER paint, and/or assembly...brilliant, many thanks