I realized I never answered your question regarding the American P neck. The Slim-C neck is definitely thinner front to back than the American Standard series basses from the same time frame. I owned a 2012 American Standard P with the Modern-C profile at the same time I owned my Honeyburst P with the Slim-C profile, and the difference was immediately apparent. The Modern-C is more rounded, while the Slim-C neck felt distinctly more flat where you typically rest your fretting-hand thumb while playing. It felt very similar to an Ibanez neck profile, but just a tiny bit thicker.
thank you for realizing. I didn’t want to say anything. Lol
Great to know.
I have to start looking for one.
Thanks again for the info much appreciated