Not quite sure what to answer to that.

If your question is will the 2R be still competitive in 25.5, then the answer is yes. Pretty much every relatively recent chassis will be competitive unless you are competing for top national spot.

From a future proofing perspective, then you are probably better with the 3. It’s the newer platform, it will probably be supported for a longer time.

I found the MTC3 to be easy to adjust and maintain. Didn’t have the 2R, so I can’t compare. It reacts well to setup changes and is predictable. Building it sent quite well, though the many tiny c-clips can sometimes be a pita…

Hope it helps,
Martin Paradis