Missed putting the 1A fuses in for both shunt wires when I did the original run. Picked up on this from some postings on VAF. G3X manual is clear that these are required, but I just missed that detail.
Pulled shunt leads off (not easy!) and installed female spade connectors. Need to get some 1A ATC fuses to complete... I only had 5 A on hand. Will be on a service loop under VRs.