Thanks Kevin. I guess that interpreting your response is that yes, the GRLV plus would be better and lower noise than the shunt regulator. By invert stuff you are referring to Q14 (pos. regulator) and Q6 (plus current mirror Q1/Q3) and zener?
I assume that, like your original dynalo supply, etc., that this is quieter than batteries?
I'll source a GRLV Plus board and give this a shot. Not sure if I will buy Salas' board or not (since I would only be using the RIAA portion of it). I may still, though $52 is a bit steep, but it is 2mm / 3oz copper IIRC.