I never said I'm the only one who understands..clearly AMD does...they've even admitted that the PLX chip in 3870x2 wasa major source of this problem, due to a lack of bandwidth, and have both used the new PLX chip, as well as offering the XSP.
I'm dealing only with your "stutter under 16x/4x Crossfire", which is not microstutter. Microstutter is not an issue fixed purely by pci-e bandwidth, but stutter from 16x/4x can be fixed, by using a board with 2x16 electrical slots.
This is the only issue I have with your claims. using 16x/4x for crossfire is nothing more than a bad system config, and builder error.
Maybe you should enlighten me... you clarified how?