some guy was testing an earlier build and it worked fine, but no man if you want to know then you have to test it. i finished 24th out of 30 in the pro group, and 26th overall out of 57, in 23:02. not bad considering i started all the way at the back. when you say no, you shut and lock hundreds of other doors that lie behind the door not opened. call us and we will be glad to help you choose the best drop box or collection box for your location and application. 