Andrew W., Youngstown, OH
I have always been a "whistle in my pocket" guy to keep track of the AP arrow on games where I have amateur scorekeepers or during youth tournaments where table personnel cannot be relied upon. So I bought one of these just to see if I liked it more. Here is my 2 cents: 1) It connects to your Fox 40 whistle quite easily. 2) The flipper stays in place. I'm touching my whistle constantly taking it out of my mouth to communicate with players, coaches, etc. and was skeptical as to whether or not the switch would move too freely. The hinge keeps it where it is supposed to be unless you purposely move it after an AP throw in.