Hi Grumpy. I'm not sure how I could try and measure it with a feeler gauge. There is a lip on the driven plate that virtually obscures the gap between the cork lining and the face. I will try and take some pictures as I have yet to drop the drive into the frame.
The linkage is adjustable for movement in either direction. I probably would try one at a time as even though it seems minimal at the drive it does make pedal difference more than expected.
The Tractor series isn't such a chore to remove the drive so I don't mind to fiddle. I haven't touched any other Greenfield series but chatting to those in the know has told me that the Anniversary series is labour intensive.
