I'll give this a bump to the top for you...
I've got a similar problem on mine. If you go to grab 5th quickly when you've got your foot in it, it doesn't want to go in right away. If you push it, you get a little grind. Pausing before going in clears it up, but that does hurt the ETs. Mine just started doing this not long ago. I think I've got some hydraulic problems in the clutch, so a new master/slave is going in. I'll see if that helps straighten it out.