While waiting on my order to arrive from TRWW [he briefly sold out of 14mm WPM], I've tried the S&B capsules without the lids [that's the way I use them in my Mighty; lids are too fiddly for me]. Inserting them open side up away from the heater with the 14mm WPA stem on top gives me a nice even roast. On-demand works better than session mode; session seemed to overheat the capsule & that fits with the comments that it runs hotter than on-demand. I confess it feels a little like I'm turning the TM2 into a hybrid by adding the S&B capsule. It seems to take more hits to clear, but otherwise it vapes better than any other way I've tried.