Thanks, Gene.
AF is very fast with my 6D, and a bit less so with the a7rii and MC-11. It's accurate though, and quick enough for my purposes, so all's good.
Good luck with the Oly, looks like a nice piece of kit.
if i was going to keep the 150-600 i would try the mc11, not sure it would be much different than the 2 adapters i have, i dont think the original a7 does well with adapters, i have heard the techart one worked well on the original a7 though but build quality was garbage,






