You know on NF we've been doing a lot of calculations of various feats, the highest energy output from Bleach characters ranks at about a few dozen megatons, the highest output from comic Herald levelers ranks in the trillions of yottatons (1 yottaton = 1000000000000000000 megatons).
Of course I know some people are against such scientific quantification of fiction, but just pointing it out.
The few links in the anime section I've come across wouldn't pass for doodle, much less scientific quantifications. Particularly this thread.
Not that I agree with the herald lists here either, to say that any Bleach characters are up there with Galactus's heralds is asinine. But the top tiers of the series definitely fall under the various meta-categories.
I hope that you aren't seriously saying that your method is anyhow scientific.
The number of accurate predictions your calculations have ever given: zero. If Ichigo is calculated to have a 3 MT sword swing, then your prediction would be that the next time Ichigo slashes his sword in a similar manner we should see a destruction of 3 MT no less no more. If we don't, then your model doesn't correspond to reality anymore and you must shape it or disregard it completely.
You should create a model which best explains every single of our observations and also gives accurate predictions for what should happen in the future.
Your way is inconsistent with observations, scientifically speaking it sucks ass.
I don't care if you want to go on applying real life physics to a completely different universe, but please, don't claim that it is scientific.
Those calculations are only for the specific feats... meaning a character is capable of that, even if they don't perform at that level with every single attack, obviously.