I have to disagree with @RainmanTrail on that point. In the recent sets I've seen, DG yellow still looks bad. Canary looks better though, based on @Toby's awesome Emerald City customs, which has inspired me to get a set on Diasqr next time it comes around.
Color has never been my main hangup on CPCs to be honest. It's always been the fuzzy and imperfect edges that the chips had. Diasqr seems to be much better with that problem though, so I'm hoping my set will end up looking good.
I love DIASQR - there's something about the way the mold imprint catches the light that I love... The mold has a lovely luminosity.
CPC colors will never match Paulson (for a hist of reasons I'm sure have been discussed). But there's something very special about being able to order your very own personal set of custom clay poker chips, using technology that hasn't changed much in over 100 years.
A CPC custom set is a precious, special thing. That the option exists for us to order the clays still exists is a marvel. It's a testament to the love underpinning the company for the real McCoy - it'd be all to easy to offshore production, pump out cheap crap, mass produced sets... But they don't. Because (I believe) they care about their product and the tradition of Chip making.
Variance in spots and consistency is a testament to the authenticity of the process - it's tricky and it's never 100% certain getting accurate results. That's all part of the beauty for me. If you want dull, uniform chips, go injection molded instead!
Some of the most celebrated chips in my games have been the "rejects" - the waifs and strays with weird imperfections, or missing a spot. Players love those chips, they're special, unique. One-of-a-kind chips, in a one-of-a-kind custom set that's yours alone. They attain a "lucky" status (and can even influence play!). I love that.
I love Paulson chips, dig casino history, etc. But I'm a bit OCD. I *think* I'd rather do a custom CPC set that is individual / original to me than get a used casino set. I find that more exciting, doing something new and personal to me. Not everyone's bag, natch!
There are some amazing examples of killer CPC chips on PCF. In the galleries, "gone but not forgotten" thread etc. No shortage of inspiration. But as the colors do change over the years, it's worth refreshing your CPC (ideally labelled) color sample intermittently I'd say.
Gawd bless CPC - and all who sail in her!