I got a couple of new test bed covers from Robo. They're testing a new Robo-branded Buildtak sheet which looks like it will fit nicely on the C2. Looks like it's got a thin film on the back which seems a bit slick to me. I'll investigate to see if it's a film sheet that has glue underneath. (It almost adheres by static electricity alone to a naked bed but that can't be how this lays down.) That said, I suppose I should snag some PETG to test with this after the PLA. Robo didn't have any ColorFabb (PLA/PHA) filament yet but I'd like to test that as well. I would really love to lose the rafts so we'll see if this is the answer.