Oh, the joy!
Changed the Steps Per to 4.4.
I tried an MDI of G00 A360 F3600 but that didn't change the behavior of the a-axis. Al, is this what you meant by controlling the feedrate in your F3600 comment? I didn't see another way to change the feedrate for a particular axis.
Next, I set the Velocity to 3600 in the Motor Tuning (see attached pic). Now the a-axis rotates to the proper angle! (I do need to add more decimal values to the Steps Per like 4.4444.) The drive belt chatters or vibrates a bit on ramp up, but the motor sounds normal.
So, due to everyone's help, I am making progress.
Thanks a ton.
The spreadsheet is very helpful as well.