I have 4 TIs in my collection and all are great shavers. 3 TAoS "5/8" (actually 6/8) shoulderless LeGrelot style blades, and 1 7/8 "hooknose." The 7/8 came to me from Classic Edge and had a beautiful bevel and edge, so i can't speak to what it took to get that one shave ready, but the other 3 I honed myself. All are C135 blades.

Of the 3 TAoS blades, only one required any honing beyond a normal 1k + progression. It has a good bevel, but the bevel was uneven as the grind was slightly uneven at the spine (meaning one side of the bevel was "wider" to get them to meet in the middle). Functionally, this is not an issue, it is a fantastic shaver. Aesthetically, I don't "love" it because it looks a little wonky to me. I can say that as compared to my other 1/2 hollow blades, the TIs do take a bit more work to dial in. I don't say this because they need more work, I just find that the steel takes a bit more effort to grind away. My uneven bevel razor probably took about 90 mins to dial in (total progression), the others, an hour or less.

I don't see any major QA issues in my razors. Of course I don't discount that there are issues with some blades that make it out for resale, but I personally just haven't seen any systemic evidence in my experience that points to bad quality product.