I don’t think so, they still engage the basic AP functions and I can control them using the MSFS companion as well.
If you’re using SPAD, I can recommend checking out this thread:
Regarding the stutters: That’s weird, I’m only aware of vibrations when ALT HOLD is engaged, but stutters in terms of low fps? Never heard of it.
To get the AP more precise (the stock one is swaying left and right), I just copied the STICKANDRUDDER PIDs from the Asobo stock G36’s ai.cfg to the JF PA and it works flawlessly.