Oh yeah I forgot you got that!
Haven't seen any screen glitch - though I've been vaping/firing mostly Titanium and it was Rossum's opinion that it's possibly less prevalent with higher resistance builds, because of lower amps causing less EMI. But DrG also said it was supposed to be fixed completely on the small screen, and the HB40 has one of the latest, if not the latest, small screen DNA40 revision - at least it has atty lock anyway. Hard to tell with DNA 40s because they resolutely refused to even acknowledge new updates, let alone provide anything helpful like a version number!
And yeah you're right £37 would give a great re-sell price! Hmm... there's a thought
But it's much dearer with UK plug? That sucks. If you did buy to re-sell just buy whatever the cheapest plug is and then get a job lot of 1A UK plug chargers for £2 each or whatever. Mine came with EU plug, and I have an adaptor somewhere - not that I plan to use it, besides for a quick test to put in my review, should I ever do one.