Well you can work around it. Since Moras have a nice big bevel, you could put a rod in the 25° setting and tilt your Mora so the bevel if flat on the rod. That way you're not hitting 25° but rather 11°. If you're not in a hurry, I can take some pics later using the Sharpmaker to show you what I mean
ok here are the picsThis is how you'd normally use a Sharpmaker or a Lansky. The blade is perpendicular to the base and that ensures the correct angle.IMG_20170925_091725IMG_20170925_091814However if you tilt the blade and use the wide bevel of the Mora to your benefit, you can sharpen it directly. Hopefully you can see it from the picsIMG_20170925_091736IMG_20170925_091825