Will Origin Live Conqueror tonearm fit my Rega RP10's skeletal plinth?

Was able to position the skeletal structure so that the tonearm cables hang off the back edge of the top of the stand, a temporary fix that allowed me to continue the tonearm setup, mount and adjust the cartridge and spin a few records before stopping for the night. Adjusting the tonearm height/VTA took a while, as did setting the tracking force.

I must say I’m not thrilled about OL’s weight adjustment mechanism. The main donut is heavy and very touchy; slight movements make significant weight changes, and the fine adjustment thing is a pain, being a small, smooth peg of sorts that is quite difficult to turn. You’d think OL would have added knurling so users could grip it properly. As OL didn’t provide a non-slip collar that could take advantage of Rega’s 3-point mount, the "base" of the tonearm moves about while making adjustments, and that slowed the cartridge alignment a bit. Anyway, I have it in playable condition. There was hissing from the speakers with my amp turned up to max (200WPC Rotel) and no music playing. Connected a long blue ground wire coming from the tonearm to the ground screw on my phono pre-amp and the noise was reduced so I couldn’t hear it at the speakers unless I exceeded 87% out of 100%. I seldom take it to more than 50% so I’ll not hear it when playing music. Wanted to begin break-in. so I listened to selections from BeeGees Greatest for a while but it’s too soon to make any judgements on sound quality.

Will update after listening tomorrow.

The following is a Tip from OL

Notes on counterweight adjustment

The trick to precise positioning of the counterweight is to lightly nip the grub screw when you get close to your desired reading. Then gently twist the counterweight slightly while pushing it in the desired direction till it gives the correct reading. Once this is achieved, clamp firmly and recheck the reading. Tracking force will likely need re-setting later so don't worry about getting it too exact at this stage - within 0.3 grams of recommended tracking force is fine

Yes. That's what it says in the instruction manual. It's a pain, especially that fine adjustment peg. 

Hopefully you'll hear noticeable SQ improvements WITHOUT doing any modification/harm to the plinth, which will affect resale value.

So far, doesn't sound like a smooth transition. 

Did a lot of listening, breaking in today. I noticed that the arm height was sinking. Found that if I tightened the large nut beneath the plinth and the VTA adjuster clamp sufficiently, movement of the arm body was minimized and height/VTA could be maintained. This is somewhat against the advice OL provides in the instructions which suggest finger tight should be enough, but finger tight doesn't hold on this plinth. So far, and this is "early days," sound quality is about the same as the Rega RB2000. 

Will update in a few days.