I Use Nudge with 4 options. with 4 arrow keys and pg up pg dn for all directions + Ctrl-Alt-Shift modifiers.

The Nudge. Nudge Large. Nudge Small. And Step Nudge

So regular keys for a basic unit of work environment. Contrl+ for a fraction of that. Alt+ for an exponential of that.Shift+ Step Nudge configured for a very small minute "precision" move.

So when working with Dimensions, my nudging is very definite at a few different levels. (4 nudge = 4 inches. Cntrl + Nudge x4 = 1 inch. etc.....)