FB, you feel it in your adductors more because pointing your toes out more takes the external rotators of your hips (mostly?) out of the strength equation. Personally, pointing my toes in more while maintaining the same width has had a positive effect on my right hip joint, which I have tweaked from squatting (admittedly my right hip joint is pre-disposed to being “tweaked” due to previous activities).
Read StormTheBeach’s posts in this thread, I found the info tremendously informative and beneficial: