I said it before - I really like the Ronx Dual torch with the Tempest.
Using the single flame setting, setting the flame to be about as long as the cap, heating the cap with a wave motion, from bottom to top - taking care to end the heat cycle at the top of the cap - just under visual indicator. Ending the heating cycle with the flame at the top of the oven, helps to limit the amount of stabilization time you need to cater for / wait for - you can stop heating as soon as the second click happens / or as soon as the visual gauge nits the final mark and then hit the Tempest straight away.
This is a one heat clear of the full bowl packed full.
It’s probably the most effective method for heating the Tempest I’ve found yet and the effects are … just what I’m looking for, Stoney and a good pain killer.
I would say that this sized single flame torch, something with a good 2.5cm flame is about the right size to get the most out of the Tempest. In all the mucking about with the Cyclone triple torch, the best way to use it is to do a a 2 heat clear, I find myself re-heating it after the VI drops below the bottom mark - however with the Ronx with the size/method above is a perfect single heat clear.
I'll do a video of it tomorrow start to finish to show vapour quantity and the AVB properly; my VI is jumpy and sticky, nothing major but I damaged my cap testing.
This is the strongest hit I have got off the Tempest and I would be comfortable saying its as good of an extraction as I have achieved with the Anvil using the same torch.