Originally posted by mcgregni Now we didn't expect that! In fact I think it was specifically ruled out for exactly the single centre pin reason.
Well, the RF60(x) will never provide anything more than standard flash photography up to the sync-speed when mounted on a camera on its own due to the single centre pin hot-shoe interface.
However, when controlled by a V6II anything goes!
In addition to HSS, there will be automatic metering and second-curtain sync.
Originally posted by mcgregni Am I right to assume that my V6 will be good to use on a Pentax flash for basic remote manual power control from the V6II as Tx?
Yes, a V6 (i.e., not V6II) is good for standard remote manual power (and zoom) control, when used in combination with a V6II.
It cannot support HSS, though and I'm rather sure that this is a give away that it won't support for X-TTL either.
The only "advanced" bit you can do with a V6II -> V6 combination is PowerSync.
Originally posted by mcgregni This would give me a 3 flash manual set-up straight away, and a 2 flash TTL one once the XTTL firmware becomes available
Do you have two RF60? If so, that sounds right.