1) low press side indicated low freon, & added freon.
2) after adding freon, low press plastic gauge says around 30.
3) still a little icing up, very cold from vents. no temp readings made in vents.
4) significant change.
5) ambient temp about 60F

i may have a slow leak.

Questions: still 1 problem, a/c not cycling off.
low or high switch? how can i tell which one?
I know it's a little cooler now, but shouldn't the compr cut out?

thanks to all!
byron