TP Needs a Change
First and foremost most TP is not healthy in it's current state. TP needs to be changed so that it can not be used in the early game. Now before you start flaming me let me explain a few situations.
Situation 1 - You take a combat summoner and they take TP and you get the kill. a. You get maybe 3 minions pushed into the tower for a lose of exp. Now you can stay with an exp lead or you have to back and they end up pushing in a whole wave or freezing the wave and you are down 3 or more minions in exp, or you stay and they have an item advantage and are full health and mana. So lose lose.
Situation 2 - You take a combat summoner and they take TP and you both survive. Now you didn't get the 3 minion exp lead and they are full health and mana and have item advantage, or you back too and they shove an entire wave into your tower and get an exp lead, or they save TO and you guys are even, but they can join their team.
Situation 3 - You take a combat summoner and they take TP and you die. Pretty much you lose the rest of the game to them.
Now TP can stay in the game, but it should not be allowed to be used prior to like 7 minutes atleast.