Randyman since this virus nonsense I’ve made quite a bit of my own grind since the store never has what I want these days. Tri-tip whole is usually good price but yes the meat is fairly lean. My husband prefers either 90/10 or 93/7. I mixed about 6 lbs of home ground tri-tip with 3 lbs of store bought 85/15 and it looks great. Myself I prefer 80/20. I also ground about 6 lbs of bottom round last weekend and that was very lean lol. the hubby had to put butter on those burgers lol