Just checking: 5 mint leaves, but garnish with "mint leaf". Taken literally this suggests shaking with the four remaining leaves, but perhaps I am being too literal?
I've only just got a bottle of "this" Chartreuse (is there an abbreviation you can use? C de M?) so this cocktail is a good start to dial things up (or down) to get what suits you. Less Suze for sure in Take 2.
For my taste it is one of the weaker last word variations, the Suze is a bit too dominant. In my opinion Suze is a bit like lovage or truffles in the kitchen. It is great, but really difficult to find the amount which not dominates everything.