It is said that when I putt my 30 foot putter is divided into 6 parts (5,10,15 etc). But when I play on standard greens (which are supposed to be standard right?), have for example a 5 footer left and makes it go to the first step it will still end up short. So is the real standard greens really somewhere between standard and fast? Just wondering where you got the 5,10,15 etc division from...