You didn't even listen to the BAT and you're thinking about changing tubes? A true audiophile. As long as you're asking for advice, if possible, (and I know it's not always possible)buy your cartridge from a local VPI dealer and have him set up the table for you. Then listen to it for a year until you have a firm reference in your mind. Then, you will know whether changing tubes or cartridges or cables is an improvement or just a change. Right now, without that reference point, you're just walking around in the dark.
As to a cartridge, I believe a lot of VPI users seem to gravitate towards Dynavector. Enjoy your new setup.
As to a cartridge, I believe a lot of VPI users seem to gravitate towards Dynavector. Enjoy your new setup.