Hello, I was using an R1+ with just hairspray directly onto the glass until I put a bit too much on one day and shattered the glass. Not cool. So I purchased a 10x10 PEI Gizmodorks PEI sheet from Amazon and got a replacement bed from Robo. Anyone had good success with using a PEI sheet such as this without actually using the permanent adhesive layer? I like the idea of using binder clips to make it less permanent and easier to maintain, but I seem to only be able to put them on the right side as there is not enough room on the left side and it's not big enough to clip front to back and even still there seems to be a lot of flex in the middle of the bed if only clipped and not secured using the adhesive sheet. Any ideas would be much appreciated!