At this point, IMHO, it would make sense to go to a spread restriction but even now, 6 years after AR, I encountered an out of state hunter proudly dragging a 2x2 out in 2F on opening day this year. The oh sh!t look on his face when I told him his buck was illegal shows that there are still hunters out there that have difficulty handling any AR let alone able to judge a spread measurement. (BTW, he seemed sincere when he agreed to turn in the mistake and pay his $25)
That hunters is in for an even bigger surprise if he did in fact turn it in because the fine would be at least $300 , because it was not an honest mistake. He didn't know the regs and shot an illegal buck. Ignorance of the law is not a valid defense and your ignorance of the law is inexcusable.