I would also consider the L35 TM Ghost Spider putter as it's better precision, slower meter speed, same forgiveness as the L19 putter (better than the L28 one), and has better balance. You also get 6 power settings as well (vs 5 on the others). I have tried and have the L19 and the L35 ones, though it's been a very long while since I played with them.
I also have the Rossa mentioned, however, it is not as forgiving as the either TM, so it isn't as good for off-ding players.