I'm sure the goal will always be to be as good as humanly possible out of the box. 99.999% of users will probably never have to think about it. But if your miss

I'm sure the goal will always be to be as good as humanly possible out of the box. 99.999% of users will probably never have to think about it. But if your mission-critical application just happens to hit a case which the default behavior handles poorly, would you rather: 1) redesign your system and hope that a different design just happens to not hit the same bad case, or 2) tweak a knob until the GC fits your use case? I think I'd prefer 2. But 1 will always remain an option I suppose.