So, follow up. The original drive train in the plane (E-Flite 32, 75amp ESC and 2800mAh, 5S 30c battery) weighed 23oz. Yea, that's heavy. Had to add 5+oz to the tail and it was still nose heavy. Yikes. Sucker weighed 65oz with battery. Not good. But on the plus side, I had most of 35% of the battery left after a flight.
So, ordered new drive train (Cobra 2826/12 motor, 50amp ESC and 2800mAh, 30c, 4s battery). New drive train weight: 15.9oz Yea, that's 7.1oz PLUS I lose the 5 and change ounces off the tail. End up being 12.3oz lighter bringing the overall weight down to about 53oz. That I can live with. Hope the set up has enough juice to drive the plane. Should.
And I found the hangup in the control system. Pretty stupid, too. Figures.