I've had a similar question when it comes to entering scores for handicap purposes. While I'm not a member of club to get an official handicap index, I do keep track here (of course!).
I briefly looked at joing the RCGA (Royal Canadian GOlf Assoc.) and it indicated that when entering scores for handicap purposes, that the adjusted gross score (i.e., score after ESC is applied) should be entered. Would this mean that ESC is not automatically used by the RCGA when entering scores and calculating indices? I find that really strange, since I'm not always aware of the course handicap, and what my limit of strokes/score per hole.
I've also posted my actual score on the hole here at Oobgolf, thinking that ESC will take care of the handicapping index calculation and that the average score will be my [
]actual[] average score. So, I'm glad that it seems consistent with what others believe and/or are doing.
Armand