I have had a 12.4 and a 12.9 revo, as well as a multitude of the other cf shafts. The first time I tried the revo, I didn’t have a problem with aiming until someone pointed it out about the ferrule. It bothered me nonstop after that. I have heard and seen a few things that can help. Two in particular helped me immediately. One is to take one of the whiteout products that are like a scotch tape dispenser, much slimmer obviously, and wrap a piece of it around the shaft just below the tip. The other is to take quality painters tape, suggest Frog brand tape, and wrap a piece of it around the tip and another around the shaft at whatever distance you would like a “ferrule” to be. About 1/8” works best, then use the whiteout bottle with the brush and basically paint a white ferrule on. Remove tape and you are good to go. These are just two options I’ve seen people use that seemed to help. I had to stop using the revo not bc of the lack of ferrule, but was not a fan of taper. But, if you like the shaft, maybe try these quick easy fixes. Just a suggestion.