I agree with you, etch combo that you master (scratches that ar in your muscule memory at double time and at different bpms) adds to your over all flow, cause the point of the combo isnt to repeat the combo identical every time you bust it. having a combo in your muscle memory gives you an opportunity to connect that new combo with other scratches in your repertoire, and the adjustments you made to lern that particular new combo always give you added knowledge to other scratches you already masterd. I have had the case wher I lerned a combo that was similar to another combo i already knew, and it messed me up being able to double time the older combo..
