Propane grill??? Blasphemer! Infidel! Heathen! Fafir! Philistine! Lowbrow! Cretin!
Repeat after me.... Fruit or nut hardwood lump charcoal is good... propane is bad, very very bad.
"Fruit or nut hardwood lump charcoal is good... "
While better that propane, in mesquite country, we'd still have to get a crew of roughnecks to take you out back and beat you.