Thanks. I wasn’t trying to create a commotion, but after factory refurb, the F1+ printed a few cycles OK then consistent fails. FL has been trying to help, but the first set of techs were probably new, and following the same script that didn’t in any way apply, so many months have now passed, but the problem is consistent. The newest tech seems more knowledgeable. Since I bought the second F2, the stress to get it working is less, but I still need it working. I was interested in the F2 updates, because the delay and initial goose chase with the problem resolution was prompting me to look at other systems again, despite my FormLabs loyalty. I just get nervous about precious time lost with failures, especially when it does take so long to print (although beautifully). Having an improved seal or mounting for the critical transmission glass definitely gets my attention.