Brian, if your that close and already that far past them, they should be able to hear you IMO. Personally I give them the distance but if they move or ride in an odd part of the track and get within that distance I don't consider that my problem as that comes down to running consistent lines. My thing is it's A group, there will be some closer passes, as long as they are clean there shouldn't be an issue. I know a guy that I was passing out of the carousel at nelsons and I went right, he starts to move right, I said screw it and went left and as he decides to shift left we damn near hit elbows. Jinu was behind me and said I scared the crap out of the guy but there was nothing I could do as he couldn't even go in a straight line.