Anyone use audio selections other than normal? If so where, when and why? It's something than I never really see come up on the forums. In trashy areas I could see where it would be a real pain to use anything but normal. In clean quite areas I'm wondering if by using the pitch hold feature that the alternate audio selections offer it may help identify those deep/hard to hear peeps-turning them into beeps. I wonder if it has any affect on iron falsing? Wouldn't it be nice if by using audio1, 2 or 3 you would still get those iffy iron signals but the deep coins would be pitch held and very discernable from them? Wonder if it pitch holds on the iron false?