Have found 17 so far this year. One thing often overlooked is this. If you can help it, do NOT miss looking on a dark, overcast, rainy day. It helps a ton to have dark background, and those antlers fairly glowing.
Today I walked 4.5 hours HARD, and found one dandy antler and a few small ones. But it was sunny, bright, and it's been incredibly dry here. The antlers I did find, I stumbled on.
I realize you have to look whenever you can find the time. But believe me on the dark days with rain. It ups your odds.