I'f I'm not mistaken, the solar-plexus lies right on top of the pit of the stomach, therefore they are represented by the same target. You can call it whatever you want, the bread-basket, solar-plexus, or the pit of the stomach, etc. The spot is the depression which lies directly below your sternum. Back in the old days this was target was so sought after that it was called the "mark." I remember watching one of Kelly Pavlik's early pro fights and he stopped his opponent (who brought their guard up too high) with a hard right to the solar plexus.

It's a good idea to mark your mirror or punching bag. That way instead of hitting something like you're trying to rack up points, you're really thinking about how to setting up your punches before hand.

Anyways if you're interested, check out this link: http://www.saddoboxing.com/boxing_fo...html#msg680144

It's part of a study that I made to better understand where to hit, and I tried to explain it thoroughly when I could.