ive only just got the knack of grinding the small fellas (after many years in engineering!) - basically it will cut ok so long as when you eyeball it the cutting edge is the highest point! - if you can do big uns you can do the little ones with practice.
with the small ones, if they have been badly ground I sometimes find it easier to grind them flat, and start from scratch.
Dont let on to you know how to do it, or you end up grinding them for everyone else every 15 mins
