so ive been trying to nail split s rolls and every time i come out of the rotation the back end just kind of kicks out and wobbles for like half a second before it stabilizes. its not a crash level thing but it looks terrible on the footage and i can tell the tune isnt right for it. im on a 5inch running betaflight 4.4, rates are pretty low still because im not super experienced but i dont think thats the cause here. tried bumping d term a little and it helped like 10% but still looks sloppy. anyone dealt with this

yeah that kick is almost always d term not being high enough to catch the overshoot at the end of the rotation. but also check your master multiplier isnt too high because sometimes people crank that and it fights itself. what motors are you running because on lighter builds that wobble can also just be prop wash getting under the frame weird coming out of the flip axis

i had the exact same thing for weeks and it drove me insane. turned out my props were slightly unbalanced, like one of them had a tiny nick i hadnt noticed. smoothed out a lot after i swapped them. probably not your issue but worth checking before you go deep into the tune rabbit hole