A wild a guess simply parts use up that would explain a ton.
Works for me. I can easily see Savage doing something like this. After all, they didn't make decisions for the simple accommodation of future historians. Sometimes when things don't fit your analytical structure its a sign you may not have it as right as you thought you did. Maybe its time to recognize a class of 99 that's outside of the simple Es,Gs and EGs we've all become accustomed too and create a category that had no purpose for Savage beyond using up parts from the bins of discontinued models. Has anyone ever came across "mix-masters" from other periods of production?