Hi John~ I emailed you the curve I use The WN/SEL samples are printed with our R2880 (since we don’t keep a big printer set up with that ink combination, and the R2880 is both easy to change ink in and produces incredible quality prints). You can use the R2880 curve with your 3880 printer, by placing the curve in your Quad3800-3800-K7 folder (and running the install.command if you’re using a Mac).