I've had the same tuning issue with my JP6 and have taken it apart and am ready to re-connect the Bender Board so I can adjust the VR1 & VR2 but my question is, do I need to ground the circuit board? The way it's designed is that the metal encasement of the bender section is grounded to the chassis ...

Very well stated. You are correct. Apart from the Juno 60, these other two are going to only come down in price.
Thanks for the quick response. You've made up my mind.

I have just enough money to afford a local sellers Minimoog. I can get that or for the same price, maybe a little less, I can get a Juno 60 & a Moog Sub37. Or a Juno 60 & a DSI Pro 2. I currently own a lot of old Roland Synths and would like to hear which way I should go to expand. I love the break ...