Thanks very much 4thpower. Living in a cardboard box under a freeway overpass, I have a lot of time on my hands for "quality info".
I was on Tarsius Customs FB page this AM and came across a few comments by the owner of Tarsius... Pando Rodrigo.
"We would like to apologize if the glass quartz did not fit, this is a process we are currently aware of. We will definitely find a way to get the replacements to you."
"Same goes to the other Quartz Kits out now, we know which batch had the problem and rest assured that we are working with the concerned vendors to resolve the problem. Thanks for letting us know."
"We decided to flame treat both ends of the glass without compensating for the change in diameter after flame treating. Agaiin, we apologize for not seeing the effect. We are working on the replacements and they will soon get to you."
So... they are well aware, and are standing behind glass failure issues, if you contact them. Good for them.