I keep losing my browns!! They come out fine after I wash, nice rich brown, but as they dry they go dull grey. Seem to be fine if I tone them in gold, but no brown at all. I follow the Sandy King tutorial and have tried others. with no change.http://sandykingphotography.com/resources/technical-writing/vandyke Any suggestions? Im using new fixer and hypo every session (just a few prints) all chemistry has been mixed by myself and is fresh. Last time I washed for 30 minutes after hypo bath still went grey. Im using Hahnemuhle 300 Platinum Rag. dont think there is any problem with the paper First is vandyke brown with no tint (scan is more pink than print, but no brown), second is exact same process and development but with 1 minute in gold tone bath and is fine.