WPL-20 Cart Matching

I was auditioning a used retipped medium output Benz Glider S into my Wright Preamp. Sounded good to me. The dealer has a new SH model in stock and I was wondering if anyone knows which sounds best? The SH or the SM Glider. The pre handled the medium output level just fine. I'd rather buy the one he has in stock, but I really want the one that sounds better. Any opinions?
Thanks in advance. Dave
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