Playing the devil's advocate here, why would this not be a shig?
Like - if I took a TF 210 Gyuto, thinned the hell out of it, and reprofiled it for a bigger flat spot, it would still be a TF. If I then used it for 10 years until it was a 150mm sliver of it's past self, it would still be a TF. It would arguably be a petty and not a gyuto, too - but to me it would still be a TF.
Although it's jarring to say the least, isn't
@ma_sha1 just thinning, reprofiling, and refinishing his knife in a way that would give him as the owner the most utility and/or enjoyment?
Kinda like Bamford and their custom Rolex abominations.
Edit: many replies have been posted since I started typing this rip order of conversation