I just got a Beseler Dichro Colorhead for my C23 enlarger and made a print from Fuji Reala to Fuji paper. It looks very nice (took 5 tries). The shot is of a model in studio lighting. The background has the slightest tinge although the overall color balance is fine. I think the issue arises from the fact that lighting of the background at the time of the shot was not carefully done. Is there any suggestions for changing the filter pack to render the background white? My best print came from Y45 M55. Apologies in advance, I don't have a way to scan the print (and also, it's still wet). Thanks!