I own a Shure V15VXmr cartridge as well. I have it in a Graham 2.2 tone arm on an Oracle Delphi MKIV turntable. I am very happy with it's sound. It comes close to sounding as good as my $2000 Audioquest 7000FE5 cartridge. No it doesn't sound better but comes a lot closer than one would think given the price difference. That said the Shure's Achilles heel so to speak is it's high end. It is a little rolled off. Not much can be done about it. Although I am not a big believer in VTA making significant improvements some people claim that the Shure needs to have a positive VTA. In other words that the front of the cartridge needs to be pointing down (raise the vta). I haven't noticed anything significant with this move but that's not to say you will not. Give it a try. Personally I think the high end on the Shure is just rolled off. But short of that everything else sounds just fine. I really like the cartridge. If fact I even bought another one just to keep as a spare. Let the cartridge break in a little more. It does sound a little better after break-in. Maybe 50 hours or so. Below is a little review I wrote on another site about the Shure and the Audioquest. Might be of some interest.

Hope this helps.
Mr Vinyl

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