actually i gave up on my dunco i tried it and tried it but it was kind of impossible - i got it from ebay - it had on one page really good marks that was the reason why i bought it i think now the company had probably paid the people which tested it.
how did you sell the dunco? i havent gotten to the point of selling - the enlarger made me so mad and i am so glad that there is someone out there which had the same problem i thought i am too stupid for it. thanks a lot for your information.