Personally I used to have lots of float because I heard it's good for your knees but found when pushing hard my heels would twist out slightly and my knees would start to hurt, so locking down the float has meant my feet can't move and my knees are more supported.
Personally I used to have lots of float because I heard it's good for your knees but found when pushing hard my heels would twist out slightly and my knees would start to hurt, so locking down the float has meant my feet can't move and my knees are more supported.