[yakshaving_jgt]

That's not unreasonable. Tuning a drum these days is a function of a huge number of inputs. There are at least 16 tension rods on a drum — often 20 — and you not only need to consider the relationships between each of them (and how simply turning each rod the same amount does not work, given various degrees of inconsistency in the tension rod and lug manufacturing process), but also the relationships between each head (more opportunity for "phase issues" there), the tension of the batter head (the one you hit) so it is playable), and also the relationships between different drums. You don't want the snares under your snare drum to buzz uncontrollably whenever you hit your 12" tom.