Have you made any changes to your turntable setup since your
initial post? If not, then one area that would pay upgrade
dividends is the tonearm / cartridge combo. Given that you
have a good turntable with a lower-cost Rega arm, you might
find the Origin Live tonearm lineup attractive. The
"Illustrious" arm is probably the sweet spot in
their models. And your Whest phono stage can certainly do
justice to a really good cartridge -- such as the ClearAudio
Maestro Ebony v2 (mm), or maybe the Lyra Delos or Shelter 501
Mk3 if you want to try a good, moderately priced moving coil.