Thanks for the response!
I pulled the pivot apart and only had 1 washer- so that was ok. The pivot block was flat and tight on the frame too. The only discrepancy I've found is with the link balls. The tail grips have the same PN, but they are a little longer in comparison. Unfortunately my caliper is MIA, so no exact measurement, but it shows side by side. The bottom ball is from the blade grip. Even with longer ones I'd only be .5-1mm lower and still off center. It may be enough to not catch, but I'd like to confirm off center is per design.