I have some Cane Creek V's and I think my Avid SD7's are lighter.
I've not put either on the scales, and as the SD's are now fitted to my Roberts, I'm not about to, but my impression when I had them in my hand was that the CC Curves have a bit of weight to them.
Had a bit of a look around, I can't find a definitive weight for sd-7's, they range from 336g to 370g. Nicer looking brake all the same. I think I'll keep my eye out for some second hand AESTs or KCNCs. £ for gram they are at the wrong end of the scale but look pretty good. FWIW I've weighed the Cane Creeks at 337gr( this was without fixing bolts) and could fit pads from Toronto cycles which would knock off 40gr plus maybe a few more with some bolt tuning.
I also picked up some new pedals recently, was hoping for an alleged 46 gram saving and they came up short, only 20g saved. I might try ti axles at some point though.