Upgrading Rega P9 + RB1000

I have the RB-1000. You must atleast disconnect the ground from the left channel lead and run a seperate ground wire. Also get the rega extra heavy weight (from rega) so you can place it closer to the arm pivot. That said, the arm is still compromised with the stock wiring as the bass is lumpy and 'folded' under. I do not like the Incognito kit for many reasons. And the Discovery wire is too high a gauge. So for now I am contemplating putting a Din plug attached to the stock internal tonearm wire. In summary the main culprit on the 1000 is the ground scheme and use of coaxial cable lead out. Internal arm wire is acceptable.

Soldering direct to the stage is only for the most "adventureous". This past weekend I opened up the base plug and did the ground mod- this took care of the distortion in the highs. I am not looking foward to doing more surgery. Attaching a din to the internal wire at the bass is like a 3hr nerve wrenching tourture session. If I go back in it must be the best proven option. Was thinking of drilling the arm tube near the back to let the wire come out like the VPI and Basis arms. But I decided that having these wires exposed to airborne vibration is a no-no.

Yhun- I have found away to reduce the lumpy bass to almost imperceptable levels with most LP's-- with the stock wire. I advise that you do not use the expressimo heavyweight. My listening has revealed the the low slung weight will increase the bass level but not the definition. I will not get into why the "low-slung" design is wrong. What you need to do with your Ruby is get the concentric counterweight within 1/4" of the rear of the arm. You need to get the Rega "extra-heavy-tungsten" counterweight- available from the importer. This will still however-leave you too far away though- although you will hear an improvement. Go to the hardware store and purchase (2) non-magnetic 1-1/4" flat washers and two sided carpet tape. What you want to do is adhere (1) washer on each side of the heavy Rega weight- centered around the central hole. This will make the weight heavy enough with the Ruby to bring you about 1/4" from arm rear. I gaurantee you will hear a startling improvement in bass. You should also be aware that the very newest versions of the ruby have a much more controlled bass response. I don't know how old yours is. (I have a brand new ruby2- if your wondering where my knowledge comes from)- at this time with the counterweight mod and ground wire mod- the arm is sounding very transparent and musical. So, perhaps the lumpy bass is really not caused by the coax leadout but rather cartridge-arm synergy.
good luck