I looked at your system pics -
1) get rid of those gawdawful blobs under the Sondek
2) at the very least(for the sake of matching cosmetics) get a separate 2-3 tier Quadraspire stand and use it only for support of the turntable- wallmounting would be even better
3)consider replacing or rebuilding the Troika- it's probably knackered
Only after you've addressed the turntable's feet, cartridge and support should you consider upgrades (particularly psu and arm) or changes(unless you just want to change for the sake of change- a potential quagmire if you like what the Linn does and have built your system around those qualities)
1) get rid of those gawdawful blobs under the Sondek
2) at the very least(for the sake of matching cosmetics) get a separate 2-3 tier Quadraspire stand and use it only for support of the turntable- wallmounting would be even better
3)consider replacing or rebuilding the Troika- it's probably knackered
Only after you've addressed the turntable's feet, cartridge and support should you consider upgrades (particularly psu and arm) or changes(unless you just want to change for the sake of change- a potential quagmire if you like what the Linn does and have built your system around those qualities)