Can't/don't need to rotate too much in the stang with the stock pedals but yes is more a pinky-toe than a heel-toe and that is ok, You use your toe on the brake pedal and control pressure and pivot, is like a little art that just needs lots of practice, all my cars are manual (mustang, fiesta and ranger) and I do it daily so is absolutely natural for me, even on a Suzuki super carry 1000cc mini van I eventually use that has the pedals really distanced and there you need to practically twist your foot horizontally but is still so fun. The trick and focus is to keep your braking pressure correct and stable if you can't achieve that you are wasting more than gaining, once you get that, next thing is how much throttle you use on each situation and its timing with the clutch/shift, so it is practice, practice, practice.
