Thats a crowded side of town, I'm glad I'm on the far east by farmland. ;D I'm a Sun Devil (though I am a converted Wildcat from Tucson :evil ) and Hate going to the Tempe campus and avoid it whenever I can. I'm just glad that the poly campus has all the aviation Degrees

Anyway, all aircraft are different, some need the throttle open a bit to keep it alive and some don't. Just have to find what works best. I know I generally can't let the Cessna's idle but the 737 has no problems. So it all depends on the aircraft's particular system.