@Milt
Maybe not exactly the feel of the sidestick, but it plays into it and may determine what is required for specific applications.
A few years ago FAA tasked ARAC, who in turn tasked the Flight Test Harmonization Working Group, to look at a number of regulatory issues. (See link for all the details;
https://www.faa.gov/regulations_poli...P1-3082013.pdf)
Specifically, look at page 22 of the "FTHWG Recommendation Report" (page 28 of the pdf) for details on the "Work Plan – Side Stick Controls" which is I believe somewhat relevant to your original question.
I believe FTHWG is expected to conclude its study in the next few months.