If you have the Setpoint software installed, left click is just a finger tap, right click is a finger tap near the bottom right hand corner. The right-click is a bit weird for both tap and actual click because the hot spot is about 1/2 inch diagonally in from that corner. That might be why you experience some hit and miss behaviour.
I particularly like 2 finger scroll (both up/down and sideways), 3 finger backwards/forwards (i.e. in browser, explorer etc), and 4 fingers does maximize/minimise, although in testing that I managed to wipe out my first attempt at this message :) Oh, and double-tap is same as double-click. I use that a lot.
It will be interesting to see how X2a works with the touchpad. Imagine being able to use multiple faders in console view!