thats a pretty cool feature.
cant do that with odins the flashes all freak out if you have 2 cams on the same channel
and you can hear the zoom heads going crazy freaking out over the different focal lengths
Well we could chalk that up to being a very good reason to not have remote zoom! Though I can't help thinking that isn't the reason Canon have never done remote zoom, and a way of disabling it for the Sub-Masters shouldn't take too complicated coding skills.
Just a very small aside, don't know if my manual is different from Neuro's, or if he made a typo, but my manual has this info on page 60 (not p. 30).
Also, the system is smart, all the Masters, Main Master and Sub-Masters, are in Group A, but even if the on camera flash is set to fire, when it is triggered by another Master it doesn't, so no fires down into the floor next to you messing up exposures.
The RT system really is a very good flash system.