Whatever you do, don't get the DA 2013, hell I wouldn't even trust the 2014. I went through 4 DA2013's in the span of a month and all four of them broke for the exact same reason, the little piece of plastic under the mouse1 button that actually clicks down the reall button broke off on all of them. I settled for a DA Black and have been using it since June.
I've heard gread things about the Zowie FK from friends who have it. It definitely does not jitter on cloth pads, neither does the G400. Specifically on the Razer Goliathus Control.
As far as weight comparison goes I can't really compare, but if I were you I'd go for a Zowie FK. It has close to a perfect sensor and the G400 is notorious for having its chord break.