Just got my Exelys Breakmaster in the mail. For those who don't know what it is, David Orr talks about it a little in his Green Reading Video, but it's a digital reading device. It always points to where the slope of the green is straight and downhill. In the pic above, it shows a downhill slope of 2.7 degrees going in the upper right hand corner.
Personally, I'm a bit of a freak when it comes to gadgets that I think are worth your time. But, I figure that for $80 if you can map out your home course it will probably help save you a stroke or two a round and that's well worth the money. I asked Orr if there's ways to map out the greens like the pros do in a fashion so you don't hold up play and what to look for....and he mentioned that he will be releasing another premium video with Charlie Wi and Billy Mayfair's caddies called "On Tour With David Orr - Mapping Out Greens."