Details on that European/American stance might be of interest to several people on this forum.
Like so many people now stand when down on a shot their chin is very close to their pool cue , after my neck was fused the first of two times that wasn't happening without a great deal of pain and discomfort .
Frank suggested that I square up a bit more to the shot as as it was mentioned in another post on here a stance similar to what Minnesota Fats used where you're stance is more of a up right one , it still can have some discomfort involved but not like before .
Since then I've had another surgery so C-3, C-4, C5 are now solid so bending my neck isn't as simple as it once was .
I hope you can understand my explanation , as I was back to playing pool shortly after those surgeries while wearing a cervical collar this was back in the 1990's and today the patient wearing a cervical collar is non existent .