Hello, many thanks to you for your research and the work you have done!
I have been using the printer since 2025. and also came to about the same conclusions as yours. At the beginning, I used K1C during the year, in general, the printer proved to be quite good, but minor troubles were present and you can put up with them for technical printing, but if the printing is model, then there are a lot of flaws. Then I bought a multimaterial CFS-C system, and from the first stage difficulties arose at the very beginning of printing and these problems can be solved both by programmatically changing the algorithm and technically at the facilities of the plant itself without any major changes. I will attach a link with my experience in reworking the feeder and an unresolved issue using the nozzle cleaning algorithm.
I make attempts to independently refine and improve the printer, I also care about the problems of excessive plastic consumption on the flower cleaning tower, the amount of plastic that goes into the trash can is excessive, many manufacturers try to minimize plastic consumption, but Creality produces plastic itself and this is beneficial for the manufacturer as increasing plastic costs.
As for the support of the manufacturer of the flagship K1 series, the company, in order to maintain its reputation and customers, should think about maintaining support and constant release of updates and improving the algorithms of the printer and the multimaterial system, I think after the release of the K3 about the series K2 they will also forget this is the wrong approach.
This is not a criticism of the company, but a call to draw attention to the problem of support and technical problems associated with the printer.
I really like Creality products for their availability and modernity, but some approaches spoil all the bad trends in modern competition among manufacturers, ready-made solutions are offered by users themselves and you just need to listen and make statistics based on it to draw conclusions and improve software or hardware.
Since the days of Ender 3, Creality has refined its printers based on user experience and achieved good results and has become a huge international company, and you need to preserve this experience and increase and listen to users, take criticism normally and take concrete actions to fix the problem to preserve your customers and this is a normal practice of doing world business.