Anyone try the new J A Michell Rega Counterweight/

I just installed this on my P25 RB600 tonearm and what a difference. I was looking at the ClearAudio and the Express Machining counterweight replacements, but the JA Michell was unique in design so I thought I'd try it. I can't make a comparison with the other brands but the design and build quality of the JA Michell tells me I made the right choice. I really recommend that any REGA TT owners seriously look at this. I immediately noticed a more deeper defined bass and a much more detailed presentation as well as the sound stage is much wider than before.