[speed150mph]

I agree with Tinman, while smashing into the torp is not a good tactic, running at flank in the torpedos direction before it activates is a viable tactic. You taking the risk that the torpedo may enable before you pass it, but if your close enough it may not be able to turn fast enough to intercept you. If you pull it off and left a decoy in front of you you have successfully evaded with little chance of being reaquired.

I haven't tried it in CW, but it's a favourite of mine in the Akula in DW. Fire counter shot to get the enemy running, run flank towards torpedo, drop decoy behind me. Pass torpedo, slow to one third. The enemy skipper is deaf during his evasion usually so if you slow before him, you will now be much closer to him then he thinks. He's looking in the wrong area and you have a tactical advantage in that.