I dont know too much about how different center pins work. I'm now aware i bought a RBA with a horrible one though lmao. Could anyone explain what specifically having a springed center pin will do to the setting up/vaping? I'm prepared for bad news :/ I plan to use this on a Provari if that helps
Every device has its own resistance to electron flow from battery, through the mod (battery tube, whatever you're using), switch, basically everything that's in the circuit.
Springs are not great at providing a very low resistance path for electrons. They have two connection points, for one, and unless they're made of certain materials they provide quite a bit of resistance themselves -- they bottleneck the electron flow.
So putting a spring in place of what's normally a solid rod (the center piece that goes from the positive 510 pin to the top of the RBA where the coil attaches) provides additional resistance over using just the solid rod.
This will translate to increased voltage losses (generally in the form of heat at the spring), meaning less voltage at the coil, where you need it.