So, this thread seems really dated. We have several tracks in our area that have been using transponders for years. There are a couple of them that have them synced to their scoreboards. Most drivers appreciated not worrying about the human scorers making a mistake. It also has greatly reduced the argument over line up spots. The drivers accept that they will get the spot that they had at the last lap. No more waiting 5 minutes to get the line up down form the tower and no more waiting 5 minutes for everyone to agree to their spot.