Alexei T. : "Yes, you did. Thank you, Ken!I just wish that you will add some more profiles into your K-3 profile bundle in the future.I think that your current profile is Dual-Illuminant profile that you created with ColorChecker. I suppose that this profile is good in general use but is still not very presice in difficult lighting conditions." Yes I do use Color Checker to create profile for every single different commercial photograph. This is a must for every professional photographer. Actually everyone who own a Color Checker can create a profile for himself. I usually create a general profile for my casual shoots, like my daily photo & street shoot. Since K-3 now offer the best AWB (Multi AWB), I will use it and it's M-AB more for my casual shooting. And that is why the X Pentax K-3 Profiles Pack created. I use self create camera profile for different camera since 2004, and I understand that there is many shots you actually cannot shoot a CC in advance.
via Ken Tam Photography Blog http://www.hkphoto.com/blog/2013/12/28/asked-x-pentax-k-3-profile