Increasing Spike's Charge?

[Rhi Bran he/him]

Not sure if this has been asked before, but does anyone know if you were to push a spike through a Coinshot then immediately through another Coinshot then into your recipient, would that recipient gain the combined allomantic strength of those two Coinshots? Basically, can you keep pushing a spike through person after person to increase the spike's charge (until the metal is fully invested) as long as you are stealing the same ability each time? Thanks a bunch

[Kari he/him]

I think you can't, but I still have much to learn. I think there is a WoB that says you can't.

[Weltall]

I'm fairly certain you can't steal more than a singular power with a single spike whether different powers or multiple spikees worth of the same one (though once created a spike can be broken up later, as with the Pathian earrings) otherwise there wouldn't be any need for Paalm to have multiple mystery-metal spikes that she swapped between depending on the power she needed. She could have simply used one spike, filled it with multiple powers and then changed the bind point as required.

[+Lewis Nethur He/Him]

Investing an Invested object is harder than investing a normal object, so at the very least there would be rapidly diminishing returns for multiple charges, as each time the spike was filled it would become more resistant to being filled further.

I suspect it would be far easier and more efficient to just use two normal coinshot spikes than 1 super charged spike, as youd have to kill a lot of allomancers to make one. Technically, I think it would work though.