5ml of oil? From my knowledge of fork design id have thought this wasn’t really enough in the long run. It won’t take much for this amount to lose it’s lubricating qualities through contamination and end up with worn out bushings and seals very quickly.
Smoothest forks I’ve used were open bath bombers, no doubt down to the amount of oil floating about the seals and bushings.
But sure what do I know, rock shox must know best