And that angle is?
I'm asking because I recently purchased the Field Sharpener offered by A. G. Russell for touchups at the office. It's USD 39.95.
Field Sharpener I really like it, but it offers only one angle -- 30 degrees. So it's not a perfect match for my Sharpmaker unless I abandon the Sharpmaker 40 degree slots and stick to 30 degrees for everything.
Soooo. If your Gerber has a 40 degree angle (or if anybody knows of a ceramic, fixed-X sharpener with a 40 degree angle) that would make a nice complement to the AG Russell unit.
By the way, this has both diamond and medium (brown) rods. They're smaller in diameter than many rods, being roughly 3/16 by 4 inches. But it still does a great job.
The overall unit is roughly 2 x 5 inches, and 3/4 inches thick. It really is portable enough to lug around.
Bear