I have a solingen blade with a slightly warped spine and I'm having only
moderate success touching it up.

On the convex side, the bevel at the center of the blade is very narrow, and
on the concave side the center of the edge does not fully contact the hone.

I have been taping the spine and I've tried using a different stroke for each
side: a rolling stroke when honing the convex side, and applying slight finger
pressure to the center of the blade when honing the concave side.

Am I on the right track here, or should I be doing something different?

Should I remove the tape and allow the convex side of the spine to wear a
bit at the center?

Thanks in advance.

Paul