To put all your minds at ease, I know you take your business seroiusly and yes, my friend is a certified a/c contractor. The builder's price for the unit seemed extremely high and just made more sense purchasing the compressor from an outside contractor. Just went for the walk-through and the furnace seems to be doing the job. It cycled about 15 min. on and 20-30 off, and the temp. was very confortable for a setting of about 70 deg. on a day at 34. Since it appears that a 3 ton coil is a bit oversized, is it better to go with a 2 ton or 2.5 ton unit and is it possible?