yeah man way to confusing by changing the sizes up.
Im 6'2 210lbs and i wear an a3 from atama.. Maybe an a4 jacket from them if i wanted it bigger. A3 fits for competition regulations
From Mkimonos and Dragao i squeeze into an A2 top and a3 pants. Fits fine not to snug not to big.
I have an a4 Keiko Racca and it is to big in the mid area as well as the pants were to long.
From your sizing it makes it difficult to tell what size i will need. A5? A6? Awhateverthefuck?
I agree 100% with Rio, standerdized the sizing to avoid confusion/returns.