Yes, ocxo and rubidium clock superior to txco, my switch was advertised as ocxo clock, I opened up and discovered txco clock. Regardless, I presume I'd have unhappy with ocxo clock as well.
I'm convinced enough of my presumptions that any more clocking upgrades not on horizon for me. My present planned upgrades will be all discreet componentry. Roon library on present modded mac mini to either diy or Euphony Summus server running Stylus OS to Euphony streamer/endpoint to dac, all components running LPS. Already have all AQ Vodka ethernet, AQ Diamond usb and FMC. Server processing power will be sufficient for HQPlayer DSP if desired.
My research has convinced me all discreet components optimum setup, running multi services within one component noisier. Things are getting more complex, not less for me. Clocks are of secondary importance for me at this point. My dac already runs ocxo clock.