Working with copper - I've already degreased this plate as part of standard preparation. After etching an aquatint & soft ground, I did some heavy burnishing. Is it necessary to degrease again before the next inking? I normally would clean off with California wash.
(First learned etching with a wonderful, but slightly flighty instructor, who didn't have us file, degrease or polish at all. have been tryingto fill in my gaps with a second instructor, the communal wisdom at my local workshop, and the internet)