Errr Craig won the 2005 reedy with the factory team tc4.... Which is nothing like the normal tc4 and tc4 rtr.
I had one of them when it came out, and boy was it dog... Even back then
If you can get a tc6.1 for $250 then go for it, I was running one before I got my Spec R R1, and its been great, you really can't go wrong with it.