When you get a finished cue it is pretty much impossible to know who is responsible for poor quality sometimes. Points can both be corrected to even out while turning, made uneven, or completely wiped off. A standard full splice has points that are are just as thin as they are narrow. More than one classic cue builder was an expert with a sharpie!
I have read that Davis has gotten picky about which builders he will sell blanks to just because their work can help or damage his reputation. Although Davis isn't selling the blank directly, a phone call to him after a builder is tentatively selected might reveal if the builder is on the Davis preferred list. Not that every cue builder that builds quality cues is on the Davis list but if one is you can be pretty sure he will do a quality job.
Hu
Hu, the biggest dealer for John Davis is Martin with Superior Cues. Unfortunately John Davis passed away last year and the back up stock is dwindling. I was lucky enough to get a blank and have it finished by Rick Howard. I also had to trade in my first blank for a different one because Rick didn’t like the first. It definitely was a flaw in the blank on the reverse point. It could have been used to make a wrapped cue but that’s not the style I like. I think the sharp reverse points are even cooler and harder to do well.