every once in a while when I stop turning the pot it will kind of be stuck sending, say 100 then 101 over and over until I tweak the pot a bit. Any ideas on what that is????
Yes it is the normal one bit uncertainty of any A/D converter. The input voltage is in such a state that the small amount of noise is enough to trigger a change in one in the reading. All A/D's do this and there is nothing you can do to stop it.
What you have to do is to take the difference between your current reading and the last reading and if this is greater than 2 (or more) send your MIDI. Use the ABS() function to ensure you account for positive and negative differences. There is no need to average a lot of readings.