Good Pindac, one learns from research and research includes asking about the experiences of others. While I do appreciate your advice in different areas of HiFi, you haven't indicated that you've actually owned an RP10 or P10 or any Rega skeletal plinth table, and you haven't changed out the Rega tone arm for a different brand of tonearm on a Rega skeletal plinth table, have you? Have you tried to fit an Origin Live Conqueror model tone arm to a Rega skeletal plinth table? If so, you haven't mentioned it or I've missed it in your posts, so it seems that you haven't the experience with the tone arm change that I'm hoping to learn about.
Yes, everyone says the combination of Rega Table and arm are very good. I think they are because I've been using an RP10 for about 9 years, and I've owned a number of less expensive tables since the 1960's. As we know, Stereophile, and other magazines as well, annually list what they've considered the best of particular products they've reviewed. They've apparently not reviewed the RB-2000 or RB-3000 as REPLACEMENT tone arms, or I haven't seen any such review or comparison to other branded tone arms, and I have indeed looked for such reviews.
I've read numerous reviews of the table and arm as a Rega Package. Never have I read a review where the tone arm was reviewed without the table and was compared to other branded tone arms. Never have I read a magazine review or anyone's personal experience in using the Rega skeletal plinth with another manufacturer's tone arm mounted, and that is what I am most interested in learning about. It would seem that with thousands of Rega skeletal plinth tables having been sold, some owners would have replaced the tone arm with a different brand.
Everyone's experiences have value, and I have no doubt that your experience would be valuable to many new audiophiles or HiFi enthusiasts, but there are many tinkerers out there that cannot resist the opportunity to try something new, and it is their experience that I hope to learn from.