Hi Andrew, I too use the Timestep HE power supply for my 1210, MN bearing, copper platter so will be interested in your findings. As to grounding the HE PSU I followed the recommendation on this forum and attached the TS HE earth tag to the OV bottom left of the printed circuit board, I can't say I heard any difference having frist attached as per instruction sheet, maybe its me but bottom left is a better earthing connection. J7 of Audio Origami rewired my Linn Ekos for me plus damping etc. I did not get on with the Kondo cartridge tags, very fragile, so I had Johnny put the Clearaudio tags on instead. I used a TS anti resonator between my AT OC9II cartridge and the Ekos headshell but it seems to suck the life out of music playback so its coming out and I will go back to common practice of mating only cartridge to headshell, no resonator in between

One has to try and experiment

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I'm waiting for the performance trial between the Timestep HE PSU and the Paul Hynes SR5 that Martin T and Marco use only out of curiosity as I've gone as far with my 1210 as I want to go for the time being... there are certain aspects of my Linn LP12, cirkus, modded subschassis that I miss such as the timber of wood bodied instruments, viz: cello, violin, double bass, conga drums, flutes, Bosendorfer grand pianos, etc., which I enjoyed more from my LP12, however, as stated I have to refit the cartridge being used on my 1210 first and see if I feel the same way, a pesky job switching cartridges etc, no wonder people just go with computer downloads and cd?
Ron