Tonight I connected my gauges to a test system we had at school, and I was reading about 175 on the high side. Well this other guy wanted to connect his gauges to the system so I disconnected my gauges and he connected his.
His gauges read 195! That meant one of us was pretty far off the mark... just to make sure the system hadn't changed dramatically I reconnected mine and again they read 175. So another guy connected his up ( these were all yellowjackets btw ) and he read 195 as well.
So as the final nail in my coffin this guy with glycerin filled gauges hooked his up and read 195, and then tried mine once more and they read 175.
I bought them at the AC Supply in Downtown Ft. Worth... so do I just tell them what happened, or do I have to prove they are outta whack?