Sorry, but Tails and thok is no. The fact that others could thok just than Sonic, Shadow, and Espio alone was just stupid. I don't want Tails, Big, and even Cream AND the rest to do a speed homing thok at enemies. Its just a no.
You want to have slightly fair races with Tails? Sure, there's a way. Set all boxes to runshoes, and respawntime to 2. Now go to a level with fairly many platforms and enough boxes. In the arial race zone, Sonic and Tails are truely even. I finished with the same time I normally do without lag as Sonic.