Okay, got some tests in messing with both outputs of the FMP using Taginfo and ZINC.
On my naked pixel8, TagInfo was maxing out the analogue meter. (15+) Same with ZINC.
The max read I got on the digital meter using ZINC was a hint over 25v
In both apps, when introducing either a torn apart a mifare classic magic fob or a hammy field detector (taped to opposite side of probe from device), the voltage sat around 2.5v-3.0v range.
Lessons (considering this is a single device):
-I am not seeing a difference under a load of some kind between taginfo and ZINC
-I am not seeing a notable difference in readings between using a fob and an HFD
-There is a massive difference between using a load and no load.
Edit to document the physical aspect of the fob I was using:
