Clutch adjustment?

Hey Everyone,

Finishing up my 4-speed conversion, and got the clutch installed, trans in, shifter in and adjusted (shifts fantastically!), and am working on the clutch adjustment.

I appear to be having a problem with the clutch adjustment, and am not sure what could be wrong. When I first got everything in, there was a lot of play in the pedal. I adjust it out, and then put my foot on it, and the play comes back. Any ideas? Unfortunately, I don't have a second set of eyes today to watch things as I push the pedal down, so I don't get to see what, if anything, is flexing or otherwise bending. Anyone had this problem before?

It's a mcleod B&B Long style, if that makes a difference.

- Don