[Elecraft] KSYN3AUPG and external OCXO

[VE3GNO Daniel via Elecraft]

Guys,
with new synt there is any advantage other than better ppm to use external OCXO source, I was thinking if anybody tested and external 10MHz super clean source maybe with a Wenzel or a Morion and got any better phasenoise than default TXCO... is a cleaner OCXO is directly translated in cleaner synt phasenoise? Any schematics around?
Tnx vy 73 de VE3GNO Daniel