Looking for any thoughts on the topic of a custom frame and fork I had made by a local, fairly well-known, one-man operation. I received the frame and was initially very pleased; after it was built up [with cheaper IRD canti's] and ridden, I went to replace the IRD's for Pauls Cantis. That's when I discovered a few things. The non-drive side brake boss is ~4-5 mm lower than the drive-side, and the Paul brake won't work - the slot for the brake shoe is too small. I stripped the fork bare and placed it on my work table and it's clear to the naked eye that the fork blades are slightly rotated - the eyelets for the rack mount are distinctly not horizontal relative to the fork crown. I asked my girl to have a look, from the tips up, without telling her what to look for, and she immediately said 'they are twisted!'.
So, for the audience, does this rate a return with the expectation of a full repair at no cost? or is it simply a 'custom' builder who has poor quality control and maybe isn't as good as I had hoped?
Interested to hear your thoughts, esp. from the builders out there.

Take it back to the builder. He should repair/replace the fork at his cost. These are defects due to his work, not your doing (at least I'm assuming that). You may also want to check the frame for alignment as well. Do a string test. Check that the seattube and headtube are in the same vertical plane when viewed head on, and that the wheels are centered, parallel, and in line. Some variance is acceptable. If the fork is out that much, then the frame may be off as well.

sounds like an error that this person would probably want to rectify. Granted, it shouldn't have gone to paint. I found out the hard way that Tektro brakes have really long slots and Paul brakes have really short slots. Oops.

Nobody is perfect but what happens afterwards will judge their character and customer service.

Agree with the above comments completely.

But reading this I wonder about the builder. Who he is (and I suggest that his name remain secret), how long he has been at this work, how his business methods are dealt with, how his work ethic is and other aspects? But these are my own thoughts and one's thinking isn't for public discourse all the time.

Please let us know how it goes and whether you're made happy. Andy.

A late reply to my original post. Fork returned with 2 different canti brake sets for the builder to review. Met with the expected disclaimer of 20+ years of design and building [which is true], and that industry standard measurement settings were used; photos sent to me with neither brake I supplied, rather some very vintage canti's, which appear to fit, albeit with a wonky photo. The main vibe was 'the fork is fine, and we're done'. I'll NOT, by any means, recommend this individual to anyone but will keep their identity to myself. More than a little disappointed, to say the least.