Good to know PETG has held up. I'm thinking that my warping is due to a mix of low chamber temps (if only I could print the thing I'm going go use as my chamber heater...) and potentially x-offset being a little high. I'm going to try the usual "add a brim, make sure the bed plate is squeaky clean, etc".

So far my ASA experience has been mixed. Natural colored polymaker ASA printed really easily. Their red was rougher, but looking back I was over extruding some. I'm onto black and it's printing well, but corners are lifting mid print on bigger parts. Back to basics I go.