My rule of thumb - Over 20 lbs - beard over 10 inches spurs over an inch and sharp.
I do not shoot Jakes and have gone without filling a tag tho I could have if I did shoot that jake. I do vidoe the ones I let get away -

Just my way to hunt - do not poo-poo others if that is what they want to do. Hunting is IMO one's personal preference.
I do fill the tags of the states I hunt with any mature Tom tho. That is like others have stated. Full symetrical fan9your first indiacation of a mature bird over 2 yrs old) - nice beard ( as long as it drops from the breast and soes not stick out like a pencil)- have passed a few that the beard was too short. Or spurs as I do like to let them get prolly way too close!

But spurs are hard to see even close-up.
JW