Watched your video, thanks for informing me of the new firmware update. They have a press release page that mentions the 60 watt upgrade, but it's odd it's not mentioned on the actual firmware download page, there the preheat feature is mentioned.
As far as space between the tanks and top of mod, I use "mod savers" on all my mods, even ones were they seat flush, this protects the finish, and works on all my different brand mods, NO connection issues on any of them. Some folks make their own, I don't have the time, and these are one of the cheapest vape accessories one will ever buy. Also good if you have a mod-Atty combo with a gap large enough to cause WOBBLE! That's the main reason you don't want a GAP, over time not good for the 510's on both mod or atty. And of course the "looks"!
I HAVE ONE OF THESE ON EVERY MOD I OWN:
KP Mod Guard - 5 Pack