[Scott Edwards]

My real problem is the "orange peel" effect that is showing up after mounting.

I haven't had any problems in the past like that, just an unsightly "lumpiness" to the overall image do mostly to the texture of the mounting board coming through the single weight paper. I started using Ilford MG Portfolio paper which is heavier and eventually stopped using RC altogether. Another thing that I make sure of is to store my mounting board and paper in an air-conditioned environment until it gets into the frame.

Consider switching to fiber based paper as a remedy.