We don't want to hear on the news about somebody in Mi. named Walt blowing himself up.
I would say the mod is giving you a more accurate reading, I have 2 of those so called meters 1 don't work anymore, and the other is very inaccurate, maybe its because they were on clearance when I bought them. a .07 coil at 150w uses 3.2V and 38 Amps, a 1.02 coil at 150w uses 12.4V and 12 Amps, I don't know if your mod will put out 12.4V.
Either way don't blow yourself up.