True, manufacturers do mistakes in kits (and those are mostly errors due to mass production and low quality control), but they do test fly their prototypes as well at the design stage, and come up with the recommend throws/CG for a reason.
These are safe settings and suppositly easy to fly
If you have the possibility to select different flight options in your radio (dual/triple rate), then you should keep one switch that allow reverting to the factory setup. I confess that would be impossible for the CG though

These settings are best to trim your plane at the beginning and to get used to it; but it also helps to get yourself out of trouble by flying a tamed mode to exit maneuvers or just take off and land smoothly, or whatever critical situation you find yourself in...
Every pilot will eventually change the throws, introduce exponentials, and move the center of gravity around, but that is done if you have a particular purpose or preference in flying characteristics i.e. when you are experienced and you know what you are doing
I don't know why I just assumed you are beginner, though nothing points to that

but anyway, happy flying!