I have the 343E based on several good recommendations. It does pack well. It may work well for an A80, but I no longer use it.
The first time I used it I was on a beach with my Drebel and the 24-70 L. This is a fairly heavy setup. But the wind was so strong that the camera kept swaying unless I held it still. This was with the column extended. I was trying to use a 'cable release' rather than pressing the shutter button, so I was not getting what I wanted out of the setup. Granted, that is a severe situation, but nonetheless it did not serve me.
The second time I used it was in a theater where I wanted to get the same shot of each of the teams in a play. When I set it up (again with the column extended), every time I touched it the swaying started, and again I had to grab the camera to stop it. The legs and the column are so small and light duty that, upon looking at the setup I realized it is not good for general use with a DSLR and any sizeable lens.
As I said, the 343E may work for an A80, but as you progress I would consider keeping the 343E only as an emergency backup or for travel.
Hope this helps.
Have Fun,