I mostly play with the 9K-1 and it has the leather wrap you’re talking about.
I’m not a fan of what it feels like.
Much prefer the rubber wrap on the BK Rush whatever they call it.
This feels more like a leather that’s too dry and it also feels hard and has very little give in it.
That being said the only reason I got the cue is because it was the only one I could find that had leather going alll the way back as far as it can go.
Really don’t like the feel of either leather or linen and then it goes wrap less in the last 6 inches.
If anyone knows of a cue that has a leather or rubber wrap that goes all the way back to the last 1/2 an inch please chime in and let me know.