When he gets back from his travels up north, I plan to do a portrait session with him. As to PP, I generally work in Silver Efex Pro 2 using no additional plug ins but working with either the blue or red filters to offset the effect of the stage lighting. In addition, I use the noise reduction plug in found in the NIK package. Mostly, I don't have to do too much else as the D500 handles high ISO's with ease.