I have the LHY OCK 2 and I think it is great. It has improved everything I have hooked it up to. Cables do matter. The LMR 240 is fine for 50 Ohm. The Harmonic-Technology DC III, 50 ohm is better but much more expensive. I didn't compare 75 ohm cables that closely. Oddly, and I think inexplicably, burn-in on the cables is a thing. Just leave them connected and the clock and its gear running for a few days before you judge them.
