I agree. Your arsenal may cover EVERYTHING, so you won't be needing all three balls if you're only talking about THShots. You would only need (if you're sticking with Hammer's current line of equipment) the Black Widow, and nothing stronger. In addition, you may want to take out the Toxic, which you will find yourself using more often than most, and either the Doom or Vibe (but I'd take the Blue Vibe because the Doom may be too strong if you are a high-rev player. Your arsenal, once again, would not only cover house shots, but some sport conditions as well, unless your revs are lower.
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I'll give you five bucks off 'cause you look like a guy who knows his BALLS!