Otto-Infeld old style metal tailpiece with 4 fine tuners and solid metal wire tail wire

[iburkard]

I have a bag full of similar Kronotone tailpieces, varying metals, designs and fractional.  I've never ever set one these up, never checked the spacing, since they look terrible and I've always been horrified by the wire and brass tube tailgut.  Every instrument that I've taken them off of was in need of a saddle swap, and usually has a nice windshield wiper scar across the top too.  Does anyone upgrade the gut and utilize these?