I don't know if I'd go for a cover warning on one stage then a procedural the next time idea. I thought the whole idea of the warning was to remind you? I'm sure we have all been zoned into the shooting and forgotten where a foot might be at the time. Also, one SO might be overly picky issuing a warning and then bang, you have a procedural. It's a hard rule to enforce. It's nothing like bank robbery. Everyone knows the bank was robbed and the basic mind set of the robber. People only think the shooter dumped a round, because you don't know what he was thinking. The sun on the target, a bug, the shade, we have all had make-up shots that when scoring we found out were not needed. No one has ever mistakenly used their pistol at the bank and said "oops, I thought it was my debit card."