>> Have no intentions of changing TT's so I am stuck with the JMW-9's it seems.<<
Reconsider changing the table/arm. This is your weak link and offers you the biggest opportunity to improve your system. Valhalla wire (yuk) and the other "Signature" tweaks do not change the fact that this is an average, at best, tonearm. You will never hear what better cartridges have to offer in this arm.
It's your money.