I think most here are quite serious... what do you propose to make the experiment better? It's no use to tell people their experiment is false without telling how to improve on it...
Sorry to quote myself, but it's necessary in context of this
thread, I had already suggested a way to make the test valid.
Wayne has put it somewhat bluntly, but he's correct.
The voltage measured the way Imeo has done it is misleading as the battery isn't loaded in any way and the circuit is incomplete so he's in effect just measuring the battery voltage.
It would be simple to bodge together a load by cannibalising a dead atomiser, hooking up a resistor (anything smallish say between 1.5 and 5 ohms) to 2 leads connected to the atomiser points and then measuring the voltage across the load with the fuse and without.
If you test a voltage source without an attached load, all you will see is the potential difference (voltage to give it a simplistic term, it's slightly more complex than that, but it will do) between the sources positive and negative terminals. Since there is no current flowing the resistance of the materials used as conductors are irrelevant as long as they aren't functionally insulators.
To measure the resistance of the body + fuse or body - fuse isn't all that helpful as what you really want to know is the effect of the materials on the current and voltage at the load.
The best way to do a comparative test of a GGTS with a fuse or without is to build a simple dummy load (like I described) and meter the voltage across the load with the fuse installed and without. You need a reasonably good meter to measure the voltage with any reliability and the tests should be re-run 10+ times per scenario to help avoid fluke results.
Since the atomisers we use are relatively low resistance items (~2ohms for LR ones and maybe 5-6ohms for the HR/HV ones) a fairly small change in resistance of the PV will have a fairly noticable effect on the
vaping experience. People notice significant differences between LR and standard atomisers and they only have a 0.5-1ohm resistance difference which is pretty damn small unless you're dealing with precious metal conductors.
In short metering an unloaded voltage tells you practically nothing about the electrical properties of the device and nothing about how it will behave when loaded in normal use.
I hope that helps a bit.
