Hey all, I just wanted to state again how amazing the switch to a 400 watt silicone heatbed has proven. Granted I'm using a dedicated 35 Amp power supply (with an SSR) and this mat exceeds most LED power supplies that come with most I3's, but if you can swing it, the heat up times are incredible. It gets to 120c in just a few minutes. Before switching it was an unbearably long wait. Actually, using the typical hard heatbed I had rarely even got to 110c and I had written off printing with ABS. Just a note, I've also eliminated my glass in favor of 3/16" aluminum build plate and a piece of .040" PEI sheet that I got from Mcmaster/Carr. So the thermal mass is much reduced. No more tape, glue or ABS wash. It's a wonderful thing.