I'm sure that the Xicoy valve is good, however there is now another choice, Jet Central has come out with their brand of single action and dual action air valve for a reasonable price.

I had a Jetronics valve fail at Joe Nall and happened to be working on my jet under the Jet Central tent, I told Eric I need to find a valve and he said look no further.

It is very easy to set up and use.