I've had my beautiful Maple Burl for a year now, on all the time for 2.5 light 3 second pulls, huge terpy clouds on a pinch of bud (just enough to line the screen). It's my go to home vape, nothing else compares, gets used ~6-8 times daily.
I hope I get the mileage that you folks are getting out of yours, and I hope if I do need CS that it comes in good form.
It actually took me a lot longer than usual to dial in my Nano technique than other vapes. I'm talkin like a month or two. I started thinking I should be on lower temps with longer draws, but once I started cranking it up and taking shorter draws, I was getting the results I wanted. It was still working before, but I much prefer my usage now.
I ended up comparing the short draws to long, and the long draws didn't seem to produce any more vapor. Almost like the vapor production was all earlier in the pull, so I shortened it up. Of course this is all with the stem, I've never vaped with a water tool or bong.