Maybe some people have already thought of this but Misfit racing used a new pit signalling method last year and it worked great. I thought I would share it in case other people are interested. 1.5 years ago my wife came to an endurance race with me. She saw how we all signaled to pit and on the drive home she said "Isn't there a better way?" I thought with today's technology, yes. So after a lot of thought I settled on a car alarm being the best way to accomplish this. So we obviously need one with a lot of range, is cheap, and comes with a horn. I found this alarm https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1. It has a mile long range. So you mount the key fob to your bike by modifying this motorcycle phone mount https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1. Then you hook up the alarm to a 12v battery and every time you need to pit just hit the lock button on the key FOB. The alarm will chirp in the pits and your team can get ready. No one has to stay standing to watch the rider for the full hour or 2 hours. It lets us rest. Also the rider doesnt have to take his hands off the handle bars. This is especially annoying at cresson. This is a picture of the key FOB mounted to our bike . Maybe you guys can even come up with something better.