Sounds like Nidge should move to the USA and get a higher handicap..
I used to be handicap chairman at the public course I played at for about 3 years. I went to a USGA meeting on handicaps.
We had the luxury of using either the regular handicap from scores turned in for non-tournaments or a "T" handicap for scores turned in during tournament play.
We also had the luxury before the golf season started of announcing certain "local rules" to the handicap syatem. What I instituted, with USGA approval, was a syatem that all stroke play tournament scores turned in would be entered twice into the computer. This is legal to do if announced prior, as we did. What this did was stop the "sandbagging" of those who turned in higher scores only to cash in during tournaments. Funny how the same ones seemed to cash in most tournaments.
So as chairman I could look at the normal handicap or "T" handicap and use the lower of the two as the handicap for the particular tournaments.
btw..per the millions of rounds entered into the USGA handicap computer that they have data for, there is a 2% chance of a player scoring 4 shots better than their handicap. So when a 12 handicap shoots 77, you can think he had a lucky day or..lol. Which is why we would put that 77 in twice and his tournament handicap might drop to somewhere in the 9 range.