Thread: Variable Spine Thickness

Yes it is rather common to have variances in the spine width..

HOWEVER

It should be even ie: an even angle from point to shoulder, a rippled spine like you have measured isn't as common and can be from grinding or from past honing..

To be honest 1 layer of tape should mask any issues with this, if it were mine and it really bugged me I would buff it once through and even it up as well as possible, eliminating all the old spine wear, then use tape from then on...