On Wed, 1 Sep 2004 16:44:50 -0500, "RB"
wrote:

Refresh my memory, please: on a big twin blade mower, what is the problem
when there is an uncut strip in the middle of the deck as the mower goes
along.

Seems like it has to be either one or both blades shorter than it/they


Dull blades. If the tips aren't cutting you get the ridge.