Wow, you should combine all this **** and put it in a FAQ and they should lock it here. Very informative stuff, John. Thanks very much.

I notice irritants in heavy traffic here in Wichita during rush hour, but if i take one way streets and avoid the main ones it's a lot better.

I think i will use ur tiime, distance, and shielding thing-- avoiding the busy streets, keeping distance from trucks and buses, and etc.