those look like the alloy Ns bars (Mint?). Alloy bars with a 25.4 clamp never strike as much confidence in me, 31.8 all the way! 22.2 is fine in steel though, the NS district bars seem the best out there at the moment.
I have only ever snapped one pair of bars, they were old Azonic world Force bars and I snapped them doing an 8ft drop, I got out of it fine, didn't even fall over.
I really don't see the need to get 700g Funn bars, I never snapped my 330g Inspired bars and that was regularly doing 12ft drops.