I never had the patience or interest to finish most tests (though I have finished some pretty hard ones like eagles and mikes). I am going to have to bring up names, one that comes to mind is Defost, a self proclaimed "test master" and then someone who has stated once before that he plain sucks at tests, Blacky (you said it, I didn't come to this conclusion ;P).

During most competitive gametypes it's obvious that Defost would lose most matches to Blacky, simply because playing against other people is not like avoiding static blocks. A good player has to make judgement on the other player(s), and chose a way of attacking and dealing with situations that won't reveal themselves like a test would. Test levels make players more "attuned" but anyone can get that way. It takes like zero talent to beat tests, and no that is not meant to be offensive.