Just wanted to update things here...
We received our new battery packs from Orion on Monday. Thanks to Joe at orion for getting them out to us!!
They did send some very good IB4200's instead of the GP4300's, so I'm guessing their may be some problem with the GP cells??
I have since ran into another person at the races that had bought the GP4300's, and they weren't as "bad" as the packs that we had gotten, but they weren't doing as well as most of the 4200 cells by any stretch. He was doing well to get them to charge to capacity too, but his were closer than the ones we had gotten. He was getting in the low 4200mah range with his.
I believe that the problem here IS with the GP4300 cells, and not the Orion matching process. It's unfortunate, because both Orion and GP are very well known for putting out great products on a regular basis.
Anyway, thanks again to Joe Pillars and Team Orion for getting this taken care of for us!!! It's very much appreciated!
Case closed,
Brad