Of course, I became so intrigued by that irrelevant duplicating that I simply failed to see the solution. The same system has probably been in place for years, but in order to save camera settings in RSRBR you need to manually edit the packs in \RSRBR. Which in Impreza08's case would be A8W_08.7z. Not the easiest of methods, but what can you do?
Problem solved, let's all go home now.
Problem solved, let's all go home now.