I ordered the PERF-10 and should have it in a few weeks to try with K-01X. My understanding is that while this unit has the same SRS 10Mhz rubidium core as a G-01, there is a difference in the way the two products can function in this application.
When the G-01's master clock link is set to 22.5792Mhz, its 10Mhz rubidium clock synchronizes with the 22.5792Mhz VCXO in the G-01, which in turn links to the CDP at 22.5792 and replaces the player's internal 22.5792 master VCXO.
When connected to a PERF-10, the player's internal 22.5792 master clock is retained and is synchronized at 10Mhz to the external rubidium clock.
I won't try to guess why one approach would be better than the other.
When the G-01's master clock link is set to 22.5792Mhz, its 10Mhz rubidium clock synchronizes with the 22.5792Mhz VCXO in the G-01, which in turn links to the CDP at 22.5792 and replaces the player's internal 22.5792 master VCXO.
When connected to a PERF-10, the player's internal 22.5792 master clock is retained and is synchronized at 10Mhz to the external rubidium clock.
I won't try to guess why one approach would be better than the other.