Nice to see you again!
I use magigoo personally, nearly exclusively
i am trying some purple glue stick stuff that came with some filament as a sample right now, seems to be working pretty well for me but im on a glass bed at this point, not sure how it will do on the print sheet. i think its supposed to be for 3d printing,
at least thats how it was marketed by dremmel, but it doesnt really say it on the tube. K-stick
i dont think the discoloration/residue on the sheet is going to be a big deal though, especilaly since they are technically a consumable item anyhow.
my first sheet was pretty grodie.