Sprung drivers?

[nachoman]

Question: I'm building a mechanism for an HOn3 2-8-2. I notice many imported brass steamers have sprung drivers. My mostly MDC kits are simply axles riding in slots of a die-cast frame with no bearings or springs. They run fine, but I wonder if sprung drivers would improve electrical pickup and traction. Is it worth it to make the drivers of my new mechanism sprung? Or is it just added complexity for very little gain?