1 minute for ALL 4? You must only be going down 10psi.
I use these things all the time, and to go from 35 to 18psi takes about 4 minutes(or anout 1 beer
).
And you're right, I did give them a BIG thumbs up on an earlier thread.
http://www.elcova.com/groupee/forums?a=tpc&s=2826088551&f=2606011751&m=859603400 5&r=5576016205#5576016205