i'm no expert but that's my understanding. if you can get to a store to try them, i'd highly recommend that. you'll find which one "clicks" for your body type.i tried them all and the ashby just worked perfectly.
in the same ballpark, anyone got a source for couro cromo (teak) tennis low laces?
both of mine eventually tore where they come out of the highest eyelet.
they are a lighter shade of brown, can't seem to find them locally.