What are your thoughts regarding using a poured concrete slab as base for a condensor versus one of the 2" pads that are sold by HVAC supply houses. The pad would sit on untreated Earth (combination dirt, gravel, etc.). If using the pad, of course it would be dug (and/or build up) to make it level. Plan to use 6" pump-ups as well either way.
I'm sure that slab is a better solution, but is a different/better in a material way?