I suppose it won't be quite as satisfying as seeing the actual numbers or a more perfect equation, but it's still way, way better as an estimator as long as it reflects reasonable values and total DPS for current and near-current gear. Errors in auto-attacks... well, they're a smaller part of total damage.
I am a bit miffed as to the DET versus DET-202 issue, though. Having a term of .300 STR in the 58WD equation seems a little too perfect, somehow.
