It really depends on the literal year they were made. The batches from the late 50s/early 60s are fairly consistent grind wise and need very little work depending on how they were maintained and/or if youre lucky enough to find an NOS. As you get into the middle to late 60s they get fatter and less consistent across the board, distal taper suffers quite a bit, and the grind becomes fairly rudimentary. I think thats around the time they were bought out and they ran the trademark out till the end of the decade. Ive had a couple from both ends of the spectrum and prefer the earlier samples. Theres a thread from 4-5 years back that shows the stamps from different years to aid in identifying the birth date. One great thing about Forgies is that they are pretty easy to work on. And therefore dont hold an edge for ****. But the profile is excellent IMO, and the early grinds are pretty damn decent too. The handles though are pretty junk, which is why you see so many conversions. The 1095 takes and holds a patina very well IME. I played around with all different kids of methods and none really stood out, so I wouldnt really overthink that aspect.