I like the adjustable cheek piece, it allows you to get a good cheek weld no matter how high your scope is, but I HATE the wheel type, cause it is a pain if you have to screw the **** thing down in a hurry to get the bolt out.
Would much rather just have the two knobs and use some thing to set the same height every time, such as a coin or cartridge case depending on the rifle.
Just my 2 cents
Dave