In reply to The_flying_climber: Of course not ;-) The only perfect biner ever designed has been the Petzl Spirit!
More seriously, this is just a two stage evolution of the original BD Neutrino and will suffer from all the same failings in terms of size and hence handling having been sacrificed in pursuit of lightness.
However, it certainly provides a compelling alternative to the DMM Phantom wiregate when it comes to the gear end krab of superlight quickdraw in particular and hence by extension for superlight quickdraws in general.
I'd go for different ones for different things. I carry:
very small very light ones for clipping the rope, e.g. quick draws
bigger key lock ones (heliums) for tying the rope to and sling draws
coloured ones for all cams
big oval ones for carrying wires (I paint these by hand to colour code the krabs as I can't find coloured oval).
In reply to The_flying_climber:
The open-gate and minor axis strengths are too low for my tastes and wouldn´t appear on my rack. The stainless bit pressed in the aluminium is another point of potential corrosion. Of no interest to me and not the best karabiner ever made.
In reply to Chi Cheng: Alpha Light's probably a strong contender. Going by my experience of Alpha Trads though, they may feel very different in your right hand than your left, because of the asymmetric gate. That's probably a familiarity thing though, and soon overcome with use
In reply to professionalwreckhead: I'll throw another name in the ring-Petzl Ange. I have climbed the entire last winter season with them and must say that they are, at least for me, the best biners there are. Light, strong, narrow nose profile, wide gate opening. However I do use combination of small and large ones ( large ones on the rope side ).