I still have trouble deciding when to use a chip vs. when to pitch.  I believe the chip is a high arch shot that doesn't roll and a pitch is a short flight with roll.  The roll is determined by the club.  Nine iron is a long flight and short roll vs. a seven iron which is a short flight and long roll.  Help!

I'll be interested to hear Scott's thoughts on this ... I refer to a chip as a short shot that uses little or no wrist, while a pitch is a longer shot that may require some wrist action ...

I chip with many different clubs, depending on the lie, the slope, the amount of green between me and hole, etc. ... some lofted, some not ... the gap wedge (A) is the most common club I use because it has loft but not so much that I have trouble getting it to roll out when I want ... with the lofted clubs, I play the shot farther back in my stance and use a stroke not completely different than a putting stroke ...

I pitch mostly with lofted clubs, and I play the ball less toward the back of my stance ... but again, I choose the club face type and loft to attain the shot height and spin that I want for the shot ...

I know that doesn't address your primary question, but it sounds like you already have the right general idea ... less loft for shorter flight and/or more roll ... and you can get less loft either by using a lower-numbered club or by playing the ball farther back in your stance ... after that, it's really just a matter of practicing the shots so that you can recognize the type of shot you want to hit in various situations ... good luck!  (with apologies to Scott for any errors included herein)