The modern RIC truss rods are no different than anyone else's for all practical purposes.
Treat them with the same caution you'd apply to adjusting another bass and you'll be fine, there's really nothing to be afraid of if you've ever adjusted other rods.
I found my 2010 4003 rods actually adjust much easier than any other basses I've tried before.
Just a very small tweak makes a noticeable difference, and there seems to be little or no settling period needing further adjustment.
Basically set and forget.
Treat them with the same caution you'd apply to adjusting another bass and you'll be fine, there's really nothing to be afraid of if you've ever adjusted other rods.
I found my 2010 4003 rods actually adjust much easier than any other basses I've tried before.
Just a very small tweak makes a noticeable difference, and there seems to be little or no settling period needing further adjustment.
Basically set and forget.