Thanks for that picture, I was looking for that (remembered seeing it some years ago) and couldn't find it when I was vac sealing. We are not pros at butchering so our cuts are less than perfect!
My ground isn't nearly as clean as you describe, but I've never had anything that shows up ugly or weird mouthfeel when cooked or bound up my grinder. I'm sure its not as good as a puritan grind though. I appreciate the advice.
Thing is, we are working with three freezers already! All are on fridge freezer combos though. I dont really have a good spot for a chest freezer. I went and bought some bargains and had both of my freezers pretty full already. Fortunately dad had some room in his. Hard to just say "dad" still...mom just died in May
He does the killing and field dressing but I'm going to have to get off my arse and document his stand, blind, feeder, lick, etc. if I want to continue getting deer meat. I'm just not one of those guys that wants to sit in a blind for hours and days but I better get on it, dad's 83. I dont have a wife and kids I need to escape from (wife is not a problem, kids are grown)...I know THAT'S why a lot of men like to hunt and fish!

It's been easy over the years to get deer meat but now that dad lives right next door and "hunts" right out back in the woods, its harder on him because I insist on butchering...he always had his kills processed. I never liked how they processed. So dad feels like he at least has to participate in getting it off the bone...its good old-men father and son time! But his wrists are giving out.
Dang, no way mine will look like that! That's stew meat! I have some of that...for stew!
I did vac seal the major cuts, some of which may end up ground someday. I'm one of those guys that thinks the scraps and small cuts are for grinding...nowhere near that nice. I dont know the difference!
I do have another question for all. Looking around at adding fat to the ground deer, I see ratios varying from 10% to 40% in some cases depending on the intended use of the final product. My main uses are chili and casseroles, but I'd like to make a juicy deer meatloaf too. Never considered burgers...but then never used prime meat for grinding either!
I'm thinking maybe a 15% ratio? Maybe 20%? Thing is, I've seen two calculations. Some say 1lb fat for every 4lbs meat (calling it 20%), others are calling 20% 1lb fat to 5lbs meat. I realize absolute accuracy is not needed per se, but I dont want to see too much fat rendering while keeping the final cooked product moist.
What are y'all's ratios and math?