Revo and Cynergy are both filament-wound. Very similar construction methods. The fibers are laid in varying directions known as the bias in order to get the correct flex/rigidity.My experience with CF shafts is very limited. I hit with a REVO a few times including once hitting two inch balls on a snooker table. I purchased a Cynergy 11.8 blind. It was months between my last hit with the REVO and play with the Cynergy so I won't try to make too much of an exact comparison as far as total deflection goes.
The REVO grows very little from the tip until well up the shaft. If we believe the images on the Predator site, the REVO is a wrapped CF thread lay-up much like a fishing rod at least in part. I have no reason to doubt the images.
The Cynergy is a different kettle of fish. I read somewhere that the only carbon fiber in a Cynergy shaft runs in single threads basically from tip to joint. I can't remember where I read this and I think it was secondhand info so take that with a grain, maybe a pinch of salt.
Now for what isn't debatable about the Cynergy. It ain't a skinny shaft! The shaft gets thicker rapidly from tip to a point 5.5" from the tip. Then there is an abrupt change in taper, very noticeable under the fingers, and the taper from there back a ways would be called a pro taper. I haven't taken any measurements on the Cynergy but factory claims and my experience with this shaft match.
The Cynergy is a little easier to play with than a 13mm solid maple shaft, all I can compare it to right now. I don't like it as well as the REVO and think I will be sending it down the road when and if the 11.8 REVO becomes available. I was hitting with an 11.8 REVO, I assume a prototype. Things that seem intuitive can be false with these CF shafts. Those looking for solely lowest deflection may want to wait until the 11.8 REVO is out awhile before jumping on it. Independent tests indicate the 12.8 REVO is slightly lower deflection than the 12.4 REVO. My guess is that the bigger diameter allows a thinner wall at the same strength. For whatever reason, the reasonable assumption that the smaller diameter shaft would be lower deflection seems to be false. I think the 11.8 will be lower deflection than the 12.4, but may be little different than the 12.8. Unless the deflection is another step down from the 12.8 I don't think there will be much market for a skinny shaft just for the way it feels in a bridge, might be wrong though!
All I know and a little speculation tossed in for lagniappe.
Hu