As I was astonished about the high temps I needed for the QQ, compared to what I used on the MBT, I measured the temps on the QQ. And with the recommended setting for my mod (TCR 300) the temps were correct.
I know, I never temp calibrated my MBT (just used it in TCNi), but I assumed they seemed roughly about right, but boy was I wrong. When I now for the first time measured the temps, I realized they were actually much higher. E.g. when I set 190C in TCNi, it actually gets to around 270-280C. So I probably use about 300C for 5-MeO-DMT.
With that in mind, the heat up times of the MBT are actually not extremely slower. I will make a test today for comparison, but first my MBT has too cool down again, to make starting temps even.
I could guess because the thermal mass on the MBT cup is smaller (1g) compared to the QQ (2.8g) plays a role here. You also experience that the QQ holds its temp much longer. E.g. if you did heat up the QQ, you can even take more than one rip without heating it anymore, whereas the MBT quickly loses the temp. I don't know what I like more, as both have advantages and disadvantages.
But what I did realize is, that the design of the QQ is really messy. Stuff condenses on the bottom (not of the inside cup, but where coils etc. are), and leaves a terrible mess, which you cannot clean unless you take everything apart, which is quite tedious (if not an utter nightmare) and unnecessarily puts strain on the coil wires. IMHO Matt really has to overthink this design, and add a glass tube which fits right over the cup, to get rid of this problem.
The cleaning of the MBT is super easy in comparison.
BTW: Suddenly my QQ didn't work in TC mode anymore, but the mod always switched to wattage mode. I read up on reddit, and it seems it is a known problem for the QQ. I just had to loose and tighten again the middle screw, where the power connection is to the mod and it worked again. Just mentioned it, if anyone else experiences this problem.
Also the screws to tighten the coil wires were so strongly tightened (from the factory), that they cut off the coil wires. I already had the same problem with my DT V3. Matt should really have an eye on this, as this just should not happen. So basically I had to replace the coils...
BTW2: I'm wondering if I should test wise make an all metal cup for the QQ, with the same dimensions as the Quartz cup. I think one problem of burning substance is, that temps are uneven in the cup due to bad heat conduction.
BTW3: Lol, I think I just tipped SUBZERO over to a member... Isn't that funny. What a coincidence.