On 1-2-18 we had a few people re-working V3's and when they were torquing the screws down to 10 inch lbs some of the extruder bodies were cracking. I don't know if this is because we are over torquing this part or if it was just a coincidence. We could drop the torque spec from 10 inch lbs to 8 inch lbs to make sure we do not crack this part while in production.
Step 5 has been updated here https://ohai.lulzbot.com/project/dual-extruder-v3/hot-end-tool-head-assembly/ and we have a new slice here 3bca7f459277 these two things are helping reduce NC tags. Closing.