no first hand experience with the kentons, but do with leupold dials. Just get it in MOA and your good to go. Besides, load specific turrets are... well... easy and not as accurate to enviromental conditions.
CDS style turrets are great for up to around 600 yards, but after that conditions are too imposing. You might get away with it with a fast, big cartridge, but why? MOA or MILL-RAD can be just as fast with alot more flexibility.
I can see using one on a RUM or bigger, or if you wont be shooting in diffrent elevations/temps often. I know a few guys that like em' but i sure dont.
So again if it were me, I would just get a MOA turret and learn how to shoot long range.