First I agree with discing down instead of throwing the big boy molds if you don't have the arm for it, just because it says Destroyer or Firebird and all the pro's use them. I think it's awesome when someone lasers a Leo instead of flexes a Firebird as hard as they can to go "straight".
The problem is there's so much variation disc to disc in the same mold. I like how straight Teebirds fly, but I don't like the super beefy ones that fly like a speed 7 Firebird. I have the power to throw Teebirds, and if I go to a less stable mold then those molds have more turn to them than a mild Teebird. There's so much variation, I can throw a mild teebird 370+ and a beefy one is hard to get 320' out of on the same line. So I'd rather beat it in fast and be able to throw it than either hate it for years until I might like it, put it in the closet and forget about it, or resell it unless I have to.
I totally get it, and to that point there are no guarantees discing down either... But the thought of all that heating & beating, followed by some "grind it 'till you find it" on a brand new disc just hurts me in my Dad sensibilities. Lol