I just installed the Lulzbot modular build plate on my TAZ 5 and tried it out by printing a small test model with ABS. I found the ABS would not stick to the build surface no matter what I tried. For the heck of it I checked the build plate temperature with an IR thermometer and found that the build surface was at 75 deg C while the bed thermistor was at 110 deg C. In doing some checks it looked like the heater plate was bowed down in the middle (away from the build plate) about 1.5mm, not making any contact over most of its surface. I added some binder clips around the build plate perimeter, but the bed temperature was still off by 30 deg C. Has anyone else seen this? It looks like the bed corner supports must be modified to remove a heater plate bind and some kind of support added under the heater plate center.