For the first time in about a year I have a perfectly operating GH and new batteries.
The new batteries charge and discharge just like every other Li battery I have experience with.
The new batteries are not at all hot...or even warm...after charging or after discharging by operating the GH.
I am keeping an eye on the wrappers as my OG batteries had that glossy wrapper and I remember it being easily subject to damage, especially when putting in/taking out of my Nitecore (contacts of the charger are spring loaded and if not careful will peel back a bit of the wrapper when extracting).
I remember that all of my OG glossy batteries had some small damage to the wrappers which is why I tossed them and bought GBH2 with the matte finish. Did not have any issues with the matte wrapper batteries.
Short version: I'm using my GH and the new batteries.
If I set the house on fire, bring hot dogs and marshmallows! haha