Well , I found out my check valve idea (external) did not work. But With me not willing to leave well enough alone. I decide to pop the internal check valve and see if I could get the intermingling "short cycling" to stop. And when I pull the valve out , It went flying along with the Puck & Spring. Oh Poo .
I found the valve , but never did find the puck & spring. So I went to the old one and cleaned it up , etc,etc . Put it back together and cycling every 60 seconds. ?????????????? , What did I do, I took it apart again re-cleaned check the puck and every thing, put it back together, Same thing , now I am mad at my self for not leaving it alone. I asked the good lord for help , Which I should have done @ the beginning. But pulled it back apart rechecked every thing. Decided to stretch the spring so it fit's tight to the seat. Put it back together and it holds , cycled the brakes a few times . Still holding , Thank God.
So I have found out that not only does the puck have to be smooth as glass , and the rubber on the seat in good shape , the spring needs to be tight against the seat. Hopefully this will help someone else out when the have theirs apart