Hello Farmer,
Are you in South Dakota? Rapid city is brand new with 3040's and I am not sure if I remember all this trouble you are speaking on. I had swept 100 nodes and in that time I had been fairly impressed with ADC and I enjoyed setting them up. We were never any deeper than two in cascade and I had never turned in a node that wasn't usually 1 - 1.5 dB below P/V req.
4.5 dB @890mgHtz & 3.5 dB @ 750mgHtz
Later bro, just thought I would ask after reading these posts I became curious. I believe I have worked somewhere with you in the last ten years.
Petergunn