I have no idea why, but I all of the sudden want an open comb razor. Mostly because they look wicked cool. I'm not at all dissatisfied with my slim, just curious, I suppose. Anyway, all I know about them is they leave little stripes in your cream if your blade angle is off, and they make it hard to edge against facial hair (not an issue for me). Somebody sell me on some good reasons the open-comb design is superior... (and if you have a source for a good, cheap one to try out, I wouldn't complain either).