I am absolutely no expert on these shafts. I did try one out briefly, a couple of months ago. While the black lines on the shaft may be a good idea in theory, in practice I found it to be visually distracting, and I felt the ridges a bit. I am also worried that the carbon fiber and wood might wear at different rates over time. The deflection I felt was at a medium level. Hard to quantify, really. I didn't like the hit at all. I don't like any viking shaft, frankly, except a couple of the old ones. I've only tried them because I know a dealer and I am curious about this stuff.
Every shaft I ever tried that had carbon fiber in it has hit fairly "hard", even if the shaft is flexible. I don't know why that is, or if it is even the correct impression, but that is what I am feeling. The most natural hitting of them is the McDermott G-core in my opinion.
If you want this shaft I would recommend that you try it first, to find out if the lines on the shaft are distracting to you. In all honesty I feel you should take a look at a Vicore shaft instead, if you are dead set on a Viking brand shaft. I am sure it is perfectly possible to play great with this shaft and that some people will love it. It just wasn't for me.