In a message dated 96-10-17 17:34:22 EDT, you write: << Thanks for the reply, Mark! It seems like there's constantly something to learn on this list! So is it general practice once a radiant moves beyond a certain distance from the center of your field of view, to stop distinguishing members from that shower? Do you other old salts generally do this, too? Thanks, and clear skies, Lew >> Lew, I for one don't do this. George Z.