Ok, so I've been using one for a few days now, since the 26th....um, lol, oh ok, that's 4 days plus (February is hard to count).
I'm still not feeling the atty get much warmer than the normal version. I'm using pure pg so maybe that's not clogging it down. Also, the hit time is really 3 seconds (2-3 if you want) so it doesn't get a whole lot of time to get super hot. I just tried taking a 5 second hit, which would be normal on a standard version, and it choked the hell out of me. The atty is now warm too. Maybe that's what everyone's talking about. Anyway, my biggest complaint with the regular resistance was how long I had to take hits. 3 seconds was impossible. I don't have a clean one to count, but I think I remember most being 6-7 second hits. So if the LR versions hold up, they're definitely worth the simplicity. They do taste better also.