most pro level riders using the 05 YZF have been swapping the ignition "black box" with the 04 unit. I love the 04 powerband. I think the 06 shoud go back to that set up. (no I am not a pro level rider but I like the "controllable rush" the 04 gives you) As far as the dry sump.....they need to get the oil out of the frame. It won't matter if they go aluminum if the bike still feels top heavy. The aluminu will save 4lbs but it's not all up top....you would save just as much weight up top with an 05 and an aftermarket exhaust and a few other small mods........so , they need to redesign the motor/oiling system to lower the center of gravity or they may just be chasing their tails.