RE: Throw outs....
What? You don't have a stack of "Might have Been's" sitting all dusty in one corner. They for one reason of another had a flaw and it became simplier to begin over again with another one than to fix up that just botched up one. I got six of one A/C sitting in a pile gathering up dust and the shoes of visitors.
Had to, just to make sure you were doing it right.
Wm.