Evan:
Thanks. I didn't know about the tail number issue. Likely most of the gliders around williams were not in flarmnet which would explain it. I'll get out with a known good flarm and see if I get a good tail number. Look forward to the beta. CN/CNV working really nicely in weak wave on our last flight. But someday I hope to nudge you guys to putting in the wind-based mac cready corrections..
John