GM,
You're right about the flatness. We've talked to Tim about his tool and will eventually get it. I just haven't sprung for it yet.
Speaking of Tim Cook he is a great guy to deal with if anyone's looking at one of his mills. He is much like WM in being available and very willing to help you through any issues you have. We've got his sharpening equipment and his edger and they're all outstanding pieces of equipment.
Eddie