from what I gather each color patch represents a dot on a spider's web and every time you change on of those dots all the other dots that are connected to it change place as well and they don't go to where you need them to go. It's very frustrating.
You'd probably find it even more more frustrating if you were editing very narrow ranges of colour and getting 'spiky' results.
So far, user built DNG profiles are based on small, affordable targets with limited numbers of colour samples on them. This creates comparatively generalised characterisations and that's probably more helpful for this particular task.
But somehow I just don't seem to grasp the gist of it. Many people say the subject is not as complex as it seems but clearly it's above my pay grade.
The high end of CM can be eye wateringly complex, but the basics really are pretty simple in practice.
The problem is some folk just get a little knowledge then try to leap up the learning curve when they really don't need to at all. The smart thing is to recognise when enough is enough and to stop worrying about it and get on with shooting and PP.
When it comes to printer profiles, there are companies that you can send a print to and they will return a specific printer profile calibrated to your printer's output. Is there such a service for camera profiles?
I've not come across anyone offering a DNG profile service, but it's not difficult to work out why;
To make a DNG camera profile you need a reference chart, either a QP or CC24, neither are particularly expensive and both come with their own free software. Offering a service where you send out a reference chart to a customer and ask them to return it after use, would be expensive and difficult to implement, so difficult to make much(any) money out of. Anyone who owns a chart already has the tools to build a profile with and the software is hardly difficult to use.
Once you get to this level of camera profiling, results become rather subjective.
The exception is if you're shooting in a precisely controlled situation with steady stable lighting, most of us aren't.
Try some different software, make some profiles and choose the one you like
most. Chasing numbers on this can be frustrating and futile.