Personal experience of one partialy blocked pitot probe. Disagreement in Capt / F/o's instruments at V1 and aborted Take Off. 10 wheel and brake changes, 5 slide changes, 10 hours of investigation to find bug had flown away. . .Not to mention trouble of collecting pax from end of African (snakes and all) runway and hotac.. .Still, made a change from sunny LGW. <img src="wink.gif" border="0">