I was able to locate a hex value for the three point shot value. (05DAC314)
I found it from switching back-and-forth between blacktop and quick game (since blacktop has a different value for the three point shot, I could search against a value change.)
See here, I was able to change it to 5 points, in both quick game and blacktop modes (made 1 shot, a three pointer, made no free throws, and have 5 points).
I then tried the association mode, and I can indeed change the three pointer to two points, in association mode.
Simulated games (and/or box scores don't abide by this) requires further tinkering ...
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