That isn't what I said at all !

You need to look up 'neutral point' and to do a considerable amount of reading.
This isn't a characteristic of RC aircraft but of ALL such aircraft.

Go on-line, full scale aerodynamics ..............longitudinal stability (pitch), factors affecting,

Your stated values are shall we say a 'bit' unique.
Your last paragraph is, ........ well you evaluate it after you've spent a few hours reading and "playing" with some of the on-line visual displays which you will find offered as aids to your understanding of the concept.
You'll find it quite helpful.