Honing a Smiling Blade (intentional curve not a warp)

[ccddo]

I have a Clauss I bought off eBay. The blade has a curve. The curve is intentional. Smile (??) I have searched the old threads about honing a smiling blade, and I am confused. The threads I read refer to the rolling x stroke, and it seems like this is intended for a blade that does not lie (or lay -- I never remember) flat on the hone, since the spine is warped. That is not my case. This Clauss will lay falt on the hone, but the blade is curved like a 'smile'. From searching old threads, it seems like the term 'smile' refers to both situations.

I am attaching a picture of the blade -- I hope it shows what I mean. (Sorry for the poor quality photo; I only have a camera phone.)

Anyway, I am able to get the heel sharp, but not the center and toe. Is there any tip/trick to honing a blade like this?

Thanks

Kyle