You should upgrade your LP12. I have both the LP12/cirkus/trampoline/naim aro/old lingo owned since 1985 and also the VPI HRX. The HRX does sound better overall, but the LP12 is not chopped liver and sounds great. The naim ARO arm especially is world class. The superscout master is not going to sound better, just different.
Like Raul said, change to either an ARM or Ekos. dyna, Linn and ortofon cartridges go well with Linn's.
Like Raul said, change to either an ARM or Ekos. dyna, Linn and ortofon cartridges go well with Linn's.