That buck (Screwy) is at least 6, he grows like that every year. He has a big knob under his knee on his back leg, I assume that's why he grows funny. My son arrowed a buck last year that we couldn't find, it was a short, steep shot and he hit him very high. The buck next to Screwy in this pic has a divot out of his back right where my boy said he hit the deer last year. Could be him.
I'll kill him if I see him. Nobody has ever seen him. He tends to keep a low profile or outright leaves during the rut. This buck, which I forgot to include, is 6 too and also on the list. He hasn't added an inch since he was 4 but we still feel it's a big deal to get a buck that old and pretty cool to kill one. It's kind of up to a higher power to decide what he grows on top of his head.
I seen a buck with his front leg blown off in the morning breeding a doe at 10pm the same night out in the neighbors hay field. And 3 busted ribs and a broken leg never stopped me! That knob on his knee ain't stop him from doing what he is programed to do!