Hello guys! I would like to clarify how should be the minimal width required for HS/PE1. I know it should be shoulder width apart, but I realized one or two fingers closer/wider make the exercise much more challenging. So I marked the distance on the stick, but I wonder if it is enough. I would like to have a clear point of reference to work on.
So looking at those pics:


a few questions:
1) Is the width shown in the pics enough for HS/PE1 iM mastery or I should reduce the distance a bit more? In this latter case how much (one finger? two fingers?)
2) for the next iM, i.e. overgrip/undergrip shoulder dislocates, for mastery should I increase the distance of no more than one hand compared the the width required for HS/PE1?
Thanks in advance!
Alessandro