Not really.......the term "Scratch Golfer" is specifically defined, and has nothing to do with how a handicap is calculated. It's simply a somewhat arbitrary term used to define a golfer of a certain skill level.
A "scratch golfer" is a player who can play to a Course Handicap of zero on any and all rated golf courses.
Also, I'd argue that the skill set needed to play at that level is the same, regardless of where and individual lives and how their handicap (if they even have one) is calculated.
That's my point in a way. a scratch golfer plays 3-5 strokes over par and finds his tamper zone at 4-6 strokes over par. he can go under scratch handicap by plating 75 strokes.
I mean I've never seen that famous 72 SSS and 113 slope course. Nothing is that dull, really.
We always have courses at 73.x sss minimum and at least 135-140 slope;
If you calculate the stroke average of a scratch golfer he must be close to 82.
For example on my local courses I need only play 81 for my handicap (6 index gives 9 handicap). At 83 I dont go up. (2 shots) At 80 or with a ZTA adjustement I go down fast.
My stroke average is just under +16. I count all rounds even the worst where I "give up" shots mentally. I'm a bogey player with a 6 index. lol