Pivot to Spindle distance

My P2S distance is off by about 5 mm (over). But my cartridge seams to be aligned pretty good. Is there any advantage to having the P2S distance exact? Sounds spectacular with my redoing the entire setup.
Must have had a senior moment during the P2S alignment part.

VPI Aries
JMW-10 arm
VPI jig (to get it close)
WallyTractor (final alignment)