Honestly, unless I remove the keycaps and look, I often forget which stabs are on which board and can’t tell the difference. Installed and lubricated properly they all feel extremely similar to me. Sound is similar too if clipped and band aid modded. I’ve used GMK snap in, GMK screw in, v1 and v2 Zeal, clear and purple Durock (not sure if different), vintage screw in cherry and the latest round of C3 stabs.