I've got the same color 'vert as you. Hobby car as well -- perhaps I drive it a bit more ... e.g. mine has seen a Walmart parking lot. For very light dust I typically make liberal use of Meguiars ultimate detailing spray and a nice MF cloth. If it is a bit too dusty for me to trust that, I just give it a good wash.
Frankly I doubt you'll need to use the DA on your Z any time soon. I have a regular schedule of weekly washes and bi-monthly waxes and I've yet to see anything that needs correction with a buffer. I've used my PC to put glaze and wax on mine, but haven't needed to resort to any compounds yet -- The PG color either hides swirls well or my dealer never messed up the finish in the first place
