The bungees are fixed. You cannot unclip them under water. If you dive in unconventional positions, and the tanks move (a lot), and you manage to get entangled in the bungee (oh yes, I did - and the tank came uncomfortably close to my face) then it's nice to just unclip the bungee, untangle, reclip. Other that that, looks nice. Superb build quality. Optimal weighting.
The wing seems to be a little bit on the small side. Perhaps it is meant for two tanks only, aluminium, wetsuit? I was diving with a buddy who had the Hollis 100 sm-kit (similar size wing I guess). She could barely float. If her drysuit would have failed then the wing would not have brought her back to the surface with all her weights and stage tanks. This wing seems to be no bigger. Wouldn't go deep with it.