I also have the vkp10se superpak but use it with the VPI TNT6 table. I have tried the shelter cartridges and thought they were great. The best for me is the Air Tight. Works well with the sensitivity of the BAT. I also have not had problems with purchasing cartridges from Audiogon. Many fellow Audiogoners swap cartridges to see if it sounds better in their system. As a result, very few hours one added to the cartridge. I for one have two cartridges sitting in storage. I have yet to list them for sale. I bet there are others that have cartridges sitting for months in limbo. At the right price take a chance.
Good Luck Richard
Good Luck Richard