TKO 600 Problem?

[Buzz0]

I just finished with my installation Wednesday and drove the car to a show in Kansas City on Friday. After about an hour at highway speed I stopped for gas and some lunch and noticed something odd. When I pushed in the clutch and pulled out of 5th gear the shifter just kind of hung up. In other words, neutral didn't really feel like neutral any more. I had to move the shifter over rather than have it spring back to the center (between 3rd and 4th).
When I got done with lunch and the car had a chance to cool down, everything felt normal again, neutral was nice and loose. At the next stop I had the same thing happen. I could pull the shifter over to the left between 1st and 2nd and it would stay there, same for 5th and reverse. I can shift into and out of each gear just fine, there are no odd noises or grinding, just the sludgy feeling neutral after a few miles. When the car cools down for a while the shifter springs back to the position between 3rd and 4th like it should and feels a lot looser. Anybody have any idea what might cause this?

[Tom 72RS/SS]

Not sure, possibly low on lube so check level first. I would call the tech guys from where you bought it for advice on Monday.