I think part of the measurement issue everyone is having here is that it is not in IC's business interest to make their "algorithm" clear to an outsider.
i.e. your measurements are the ingredients, they don't want to make their recipe public:
"chest +x inches, waist +y inches" etc.
Add that to their tailors' stubbornness/inconsistency, and you get the end result which is near impossible to nail down exactly the dimensions you want.
I had a suit made FOUR times. None of...