Not to be a jerk, but based off of not only December's stats, but what Tyranitar has been generally used as since the start of BW, the players that 'left their Ferrothorn in on TTar' were... not too bright. You're not doing this set any justice by using bad opponents as justification -- or rather, as a means of showing that this set is capable of consistently doing its job.
That said, Boah is one of Tyranitar's few possible sets that gets completely fucked by a even a small change in the metagame; it's just too inconsistent to deserve an analysis IMO.
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