Thanks! I'm glad that you're enjoying it!
I believe the convex on top and concave lower similar to Heiji (if I remember correctly) cuts great but is the most difficult for the user to maintain--and
thank you all for the great answers.
@Bobblybook that picture really made me laugh.
I think there's some good advice here. For the short-term, do your best to get these knives back to an acceptable condition, if possible. Getting some