If you want to try some superlight grips, the Bontrager Race XXX Lite foam grips are 18 grams a pair. If you hate them, hey, it was only $10 Anyway, that'd be about 1/4 pound less than your Ourys.

Your seat's pretty hefty too. Ditto for those pedals. And I know you said you liked lots of stopping power, but consider a 140mm rotor in the rear... you can only generate so much power back there before the wheel skids anyway. Also, if your crankset happens to have a steel granny ring (or middle ring, for that matter), switch to an aluminum ring, preferably 7000-series aluminum which is pretty hard.

Regarding tires, are you running tubes or tubeless?

In the big picture, reducing weight on that bike, you'd hit the point of diminishing returns fairly quickly since you've already invested in a wheelset. Beyond ~23 pounds, it'd start to hurt.