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

Just completed the purchase, As this thread may be of interest to someone in the future, I'll post my thoughts and experience following receipt and mounting of the tonearm.  My thanks to those that contributed to this conversation.  

Received the tonearm earlier this week. Working on the mount to the RP10 plinth now. Things I’ve learned so far: The RP10’s top brace is magnesium, while the new P10 uses ceramic. Whatever Rega says about stiffness may be correct, but I expect it was the tarnishing of the top brace that led them to change to ceramic. It took a while to clean that up and get a nice polish. Rega’s 3 point mount serves an important purpose, in that it keeps the tonearm mount fixed in one place. Origin Live’s tonearm doesn’t have this mounting feature. It just slips through the mounting hole and has a washer and large nut below, but there is nothing to keep the base of the arm from moving. This presents a problem because the tonearm cabling is thicker, bulkier, and less flexible than Rega’s and it’s too big and stiff to fit in Rega’s cable clamp beneath the plinth. Therefore, when the cables move so does the arm base. I need to find a way to keep the tonearm cables from moving, perhaps use a cable clamp on the component stand.

The legs on the Rega plinth are not long enough to allow an easy bend in the tonearm cables as they exit the bottom of the plinth. I didn’t anticipate the leg length problem, but that should be fairly easy to resolve. The dust cover on Rega’s extended plinth surround is a few inches too short and will not clear the new tonearm, but that I did anticipate and expect to order a taller aftermarket dustcover. I’ve been wanting to display the skeletal structure anyway, but it would have been nice to put it off a bit longer.  

More later.

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.