I've seen this several times, not specifically With kicking, but general position play. Some guy gets a New (usually ld) shaft and he starts punching and jabbing at the ball, rather than stroking. The Revo is especially prone to this issue (imo) because it's so god damned stiff and ld at the same time. If you're not careful that contraption is going to wreck Your stroke. It's not necessarily the shaft being bad, it's what People do With it once they get it. Luckily it's easily fixed, it's all up to you. Start shooting some slow, center ball kicks. You know, angle in-angle out stuff. Just gentle top spin shots, maybe a tiny touch of running English if you're on a Diamond (shudder). No shaft can wreck those shots, you can do them With a broomhandle, so if you're coming up short, you're definitely jabbing the ball. Once you really get in the grove With those (really Focus on hitting smooth, don't cheat yourself), you can graduate to more Advanced 2 and 3 cushion stuff, hitting them wiht the same quality stroke. I think you'll be pleasantly surprised.
I really dislike the Revo, to me it feels completely dead, but really, most kick shots are not about the shaft at all. It's all knowledge and stroke. And if you're consistently getting long or short, the adjustments should be easily made.
It would be helpful if you went into more detail on the troubles you are having. Can you make a simple "corner 5" 3-railer? If not, are you coming up long or short? Can you make a 1 rail, 2-1 kick? If not, which speed(s) are you missing?The hard speed ones or the slow ones?
For instance, if you're coming up long, while still hitting smooth and softly on the 3 railer, you're overspinning the ball. This is what a lot of People on here seem to believe, but I really, really doubt it, because if that were the case, you'd probably easily be able to correct it With tip placement, and consistently going long on those would probably mean that you're either elevating the cue, hitting completely in the wrong Place, or you have a killer stroke. If you're short, you're probably jabbing the ball. It's a good stroke diagnosis tool. If you're all over the place, then your stroke is shit, sorry to say. Of course this can be remedied, but the shaft should not be blamed.