Yo OP congrats man, stoked for you! Youre able to go full on with your new knee? Take downs and full grappling? Are you needing to avoid certain techniques or do you have the full catalog you are using? Im a lifelong martial artist, 55 and about 3 months out from RTKR. I figured Id need to only spar with certain conditions, basically not using my knee to block kicks and asking partner not to do take downs on me, especially leg sweeps or grapples. I miss sparring so much, its one of happy places.