This board does not address PRV. I will post elsewhere.

Hi Biggermac,
I will be very sorry to see you go , i look on this sight from time to time to see what you have to say, i don't know if you'll remember me but i have the same thing. You have obviously learned more about this than i have so YOU HELP people like me that want to understand more, i wish i could answer some of your questions. Take care XX