A big turning point for me was: getting my right leg and foot muscles more comfortable on the pedal, at a proper position/angle. If your muscles get tired quickly, it is easy to move them to a different, more comfortable position; sometimes this more comfortable position can be detrimental to volume pedal technique if your foot isn't positioned correctly. So getting in a proper position with the right foot, and getting comfortable in this proper position, can go a long ways.
Here's an article I wrote recently that talks more in-depth about volume pedal technique, which has a lot of ideas and tips for beginners and other players:
http://playpedalsteel.com/volume-pedals ... el-guitar/
It also discusses the tendency to use the VP to hide the attack of picking the strings, in an effort to hide right hand blocking insecurities. (It is very common when learning pedal steel, to use the volume pedal to "cover up" developing right hand blocking technique, by having the volume pedal cut the signal out when the actual notes are being picked by the player).
Any other tips for beginners?
Casey