It´s all about peronal reference really, except for L3 (Centurion) where there can`t be any on the wrist end of forearms but you already trimed those so good to go If you plan to use the brackets then you don`t want to shave of to much on the torso parts and it`s a good thing to make reinforcement pieces because Anovos plastic is very brittle in those areas...at least they were on my Anovos TX and they broke during fitmentanyways.....I like to keep as much as possible to maintain the illusion of thickness...and it`s always easier to take more if it restricts movment to much or pinch you....for example I took more of inside of thighs and inside "swoop" of forearms than outer after som "walking around". So to conclude it`s really up to you and what you think looks and feels the best, personally I would start bigger, around 6-7mm and go from there, atleast that`s what i did on my builds