Do you deburr your edges with a diamond stone at the end of every day? That is going to make 10 times more of a difference.
I do. I know plenty of people that do neither, they don't seem to have any problems.
From what I can tell, doing the tip and tail makes more difference on a camber board anyway. My friend had never done anything with his edges on a years old Custom and they were chewed to bits. After sharpening for the first time he found it very hooky, he didn't like it. But that improved a lot with doing the tip and tail. I didn't find any real difference after doing my Evo.