Hello little Guest,
first of all sorry for the delay in replying, I'm just back from vacation. I'm fully aware of the slight inconsistencies in some of the calculations. It's the calculation methodology that leads to this and I'll see if there's a way to make changes. That being said, this coefficients are ridiculously low and that doesn't change the final result in relation to the influence of a primary characteristic...
This first version of the site is very temporary. Both Pouah, who handles the code, and myself have been very busy lately, but we'll try to make progress on the matter.
Anyway, thanks for your very relevant feedback!