do silver plating or copper contacts really matter???

[vapero]

hear me out here this is my common sense (sometimes it is wrong and not that common)
I know that in a mod the silver plated contact for the positive does in fact improve conductivity to the atomizer (I'm not questioning that here) but what about the negative one??? lets say that it transfers great the current to the mod but then the mod (that closes the connection) is made of brass or stainless or aluminum so it has a bottleneck there so it is the same as using a brass negative pin on it??
just trying to make sense of it

 

[Thrasher]

the idea is the smallest point of contact will offer the greatest resistance, so helping the current get into the huge chunk of body material more efficiently should help with overall conductivity. since the neg is almost always a little screw or scrawny spring, silver plating (best) or copper (second best) should in theory lower the overall resistance from the battery terminals.

even though some materials are more conductive then others the total mass of the mod tube is so great there is not a lot of difference in conductivity over the different metal tubes. and all goes back to how well does that little pin, screw, whatever work to get it out there.


Imagine it as 4 lanes of traffic trying to merge onto a 2 lane onramp then once they get past that they hit an 8 lane highway

 

[vapero]

nice! That makes good sense, so in your analogy that 2 lanes bottleneck using a better material would be much faster that normal lanes reducing a lot that friction

 

[Thrasher]

yea in most basic of terms the current has to rush out that tiny pin all the way through the body then up to the 510 connection. so you need to let it out as easy as possible. the size of the contact area is already small increasing resistance, now add in a material that is not very efficient at conducting current and there is where the bottleneck occurs.

a good example of this resistance can be found in mods with a side button. since the button is such a small contact area it is usually the first thing to get hot, as all that electricity is trying its best to flow through that little pin inside the button.

in a sense the better material has just upped the two lanes to a 100mph merge speed so even though traffic is forced onto the smaller road the road allows everything to go faster. (the faster everyone gets out onto the highway the more efficient the travel time will be)