I think both me an Comfy tried to explain to you in another thread that the nanjg 105C/Qlite can not boost the emitter current in any way compared to what you are seeing at the tail.
Just see this graph made by djozz, and remember that a linear driver can not increase the current from the batteries in any way. If the emitter sees a certain amount of amps, it can not see a higher amount of voltage than the required forward voltage.
The extra voltage that you seem to convert into amps is lost due to resistance in springs, switch or burnt off by the linear driver before it reaches the emitter.
I think you are confused with this because you are mixing up how a buck driver and 3 cells in series works with an MT-G2. That was probably explained to you some time back too. Unlike a linear driver, a buck driver have the ability to "convert" excess voltage into amps. (Although there are no buck drivers that can convert excess voltage into amps with 100% efficiency).
Either way, "MT-G2 + Zener modded Qlite + 2" cells is basically the same as "XM-L2 + Qlite + 1 cell". With both setups tailcap current is (basically) the same as emitter current. Excess voltage that is not lost in springs and such is "burnt off" by the 7135 regulators and converted into heat.