Been using this mod for a few days now. I did the fix I posted above and so far no issues. I like it. It may be a bit heavy for a single battery mod, definitely more so than the SMY 75 but with a 4400 mAh 26650 battery in it, I can get the majority of a days vaping on it. That's with dual stainless 316 braided coils at .3 ohms and 40 watts so I'm pretty happy with that.
If it's less heavy than my VAPECIGE VTBox200, I might sell that off and pick up a full sized VT75.

