Thanks for your responses.
It just happens i just go back from a shootout.
The effects described seem to mirror a shootout test i just attended.
I have just heard a masterclock feed both source and dac. It was calm, no brightness and fuller. It would seem tonally darker with no heightened sense of detail.
Just the clock feed the dac, there was a slightly leaner sound which actually sounded a little more lively but brighter, but not as in "bright" or sharper sound. Funnily, bass had less depth but more snap with just 1 clock connection.
So possibly with some jitter is good, but to an extent, zero jitter could be very natural but loose what i call brilliance to the sound.
Masterclock using an OCXO or rubidium unit still goes through PLL and VCXO/TCXO to geenrate the frequencies from the 10M unit, so what is the audio purist so hung up on the rubidium clock feeding dacs, transports etc. Is it still flawed as opposed to a reclocker?