Hi Moonguy....When I did the change I didn't think it was 20% better...I thought it was less. I think they both can accomodate the best cartridges made..... in my view,a cartridge upgrade if needed is money better spent. I have a Benz LPS which I think is absolutely wonderful. You will need a different rear weight if you intend to mount the LPS..Let VPI know your intentions and they will work out the weight you need.