I would use a sharpmaker or other crock stick sharpening system. From what I can tell from a picture of the knife, but no firsthand experience, it looks like a recurve and as you said a hollow ground chisel edge. Not a whole lot different as far as sharpening is concerned from a crkt m16-14sfa. Mine sharpen fine on the sharpmaker. I just do a 10 to 1 sharpening per sie. Meaning 10 strokes on the bevel side and then 1 stroke on the backside just to knock off the burr and keep the edge straight.
Other option, is use one of the sharpening guys on here or the one listed on bokerusa's site. Shouldn't cost too much.