Revo shafts have an incredibly hard (and numbing in my opinion) vault plate at the top, rather than a ferrule. This material is ultra hard - I think it is harder than g10 or close to it, but lighter. That hardness is why all REVO's come with a Predator Soft tip (factory).
I feel like the REVO has no touch because of this plate, it plays number to me in terms of feeling anything in my stroke arm where I can develop muscle memory.
I also think the front end, at least for me, requires a soft tip, other wise, the cue ball explodes off and I don't have any touch. I never could play one pocket with a REVO anyway.