I just got one thursday and I tried it out at our regional race this weekend and it definately made my schedule a lot easier!!! We were only supposed to run 3 heats on Sat., but with the threat of rain for sunday, we got all 4 in with pretty short breaks in between rounds. It was a lot easier not having to go through tech each time to get it and then bring it back everytime. lol. They're definately a good investment.