Quote Originally Posted by mrjin View Post
Nah, it's not that I don't trust you guys here but rather the results were counter intuitive and I'm going to be sleepless if I cannot find out why...

I've only worked on 6 razors so far, 4 new and two vintage ones that need minor restorations. Those new ones all came with spines in different magnitude and I have to say there was fair bit work to get them into the shape I'm happy with. I had to use diamond plate to get the job done in reasonable time.

Those two vintage ones, on the other hand, the spine came in almost perfect shape and no obvious wear at all. But after fixing minor chips on the edges, both spines now have fair bit of wear. Note that I only used 1K stone to remove the chips and set the bevel.
If you are losing any noticable spine on a razor in good condition you are simply using WAY too much pressure!
Significant (1mm-2mm) in width should take many years of honing when honed properly without tape.
When going to a 1k stone you need to concentrated the pressure to the edge=torque. It should not be much pressure anyway or you will create other problems.
I do not use tape anymore but I did for some time and recommend it for new honers till they can get a consistant edge. This will prevent unnecessary wear to the spine.