Everything is golden over here, the Tsu has been serving me as my faithful daily driver since I opened the box (kinda feel bad about not having sold the peak by now, given that I haven't touched it once since opening the Tsu). I took delivery of another DHGate glass order the other day to replace the shipment I had mentioned earlier in the thread, and have been playing with those to establish preferences.
I've gotten my preferred technique for terp pearls dialed in recently, deciding on 2x 8mm ruby pearls for loads of .2 and above as a worthwhile addition in pursuit of more consistent vapor production at lower temperatures. That being said, I find that it limits my range of pull speed in order to maintain consistent pearl movement/material agitation. It also seemed to lead to more residual buildup in the glass, but that could just as well be attributed to the lower temperatures I was running in conjunction with the pearls. It is an overall more enjoyable draw (when ideal), at the expense of having to micromanage every facet of the hit to maintain that advantageous enjoyability.
Currently working through different pieces at different temperatures to dial in my preferences w/o the pearl agitation.