I started this post b/c I was looking for a higher powered amp than Shindo makes. As Rchau correctly pointed out, the new Corton Charlemagne 80 (75wpc) solves the problem.
I bought the Masseto and the Corton Charlemagne 80! Delivery in a few weeks. I do believe in synergy, so it was only to address the "power" issue that I sought alternatives. I decided against the Shindo/Garrard 301 - and went with a Raven AC. I will have two arms set up on that in time - one more modern (Phantom etc.), one with a more "Shindo-esque" feel to it (Mersault, EMT 997), both with appropriate carts.
Cheers and thanks for the discussion.