Well you might be on crack, but that's not for me to decide
I have experienced the same thing, though I didn't get blisters. I wear a 12 Simms boot sized up 1 size from my normal shoe. Same gravel guard socks for wet wading and my feet were moving around more than I liked. Same two socks that I wear with my waders. Those gravel guards are not the same thickness of the neoprene on the waders.