Oh yeah, I pulled out the Locosounds unit and installed ERR TMCC guts and sound. It runs great and sounds fine using my CAB1-L or my DCS handheld.
The Weaver unit is getting battery-powered RC in the next week or two and is now 2-railed with NWSL wheelsets.
The Weaver unit also had fixed pilots. I don't know if all their RS3 models came that way, but this one did (and it had 3-rail wheels on it when I got it used).