Clutch dragging when hot, Throw out the culprit? Options

[aircooledboy]

Hey boys,
Anything interesting going on here lately? (IMG:style_emoticons/default/stirthepot.gif)

Oldest kid got her license today (IMG:style_emoticons/default/wub.gif) (IMG:style_emoticons/default/barf.gif) , which through a series of comical complications required me to unexpectedly need to drive the 914 so she could use my car today. While it was great to get the old girl out for the 1st time of the year, I was reminded that when I put her away last year, I noticed a problem might be starting.

When I 1st start out for a drive, it shifts great. by the time I get to the office and the car is good and warmed up, when I put the clutch in, I can feel it not quite completely releasing. Sitting at a stop, in gear, clutch in, I can feel it dragging a bit, car "grumbling" a little as I sit. When it did this at the end of last season, I tightened up the cable a little, but no change. I checked the clutch tube, and it's still solid and stationary at both ends. I'm thinking throw out bearing, but my time is so limited the days, I don't have the luxury of not getting it right on my first repair attempt. I doubt my initial diagnosis because I don't hear anything when I step on the clutch, and I've alway been able to hear a bad throw out before I've felt it.

Any ideas?