According to an EMAIL from UMAI, 35 - 45 days is optimal for rib eye. My 1st was 37 days and was fabulous. I currently have one in, going for 45 - 50 days. I have saved a 37 day steak to cook alongside the new batch.
Keep us updated, i am interested to see the outcome.
Nice mustang Jim. I own its older brother. Check it out!