I've just started "longarming" and these hints are wonderful! I think I'll get the zippered leaders! wow!
MY hint -- actually not mine, saw it somewhere on a video in "internet world". With the backing so big, it's hard for me to iron and make it look right. So I run an iron along the main crease - the one that's so hard to get rid of, spray the backing lightly with sizing, then I lay the huge backing out over the frame work. I spray it like mad with plain water....dang near get it dripping wet. I walk away for 2 hours and come back....the wrinkles are darn near gone! I then pin it on and roll it up. Works like a charm - no major ironing!