I prefer the original rules as well. Anyway, I think it's too early to start changing the rules as we only have three weeks' experience.
Maybe it looks a bit problematic that the latter rounds, SF and the final, quite easily go to the TB, as players tend to play it safe at that point with so few matches to choose from. But again, it's too early to tell and I think the way people play this game could still change as players start to take more chances or adopt different tactics.
And thanks for introducing TT!