Tasty looking steak Bear!
I kind of backed off from doing ribeyes on the SV. Maybe I’m being too critical on myself but I never seem happy with the finished product. I think it’s because of the fat that doesn’t render.
But I have preferred to SV leaner and/or thicker cuts of beef.
So far I agree with you about the fat not rendering through the SV of a Ribeye, but I am still experimenting.
I get the same Lack of rendering with a 133° SV'd Chucky, but when I did a Pulled Chucky @ 165° for 30 hours, the Fat was rendered even better than when I Smoke a Chucky to over 200°.
So like I said I'm still experimenting.
Check the Picture of the Pulled Beef, and I didn't remove any fat when I pulled it:
Pulled Beef Chuck Roast
Bear