GET THEM BOTH. I rode a t1 around a parking lot a year ago, it was okay- it felt a little more dainty and twitchier than the cannondale track (04 not the nicer 90's ones) I had at the time so if you've ridden one of those that could be a comparison; but it was only a parking lot ride so I don't have much else to say about it.

The TK2 I have no input on since I've never been on one