The new Deepstop-Edition Twinset D-12 with Atomic Regulators is the best we can offer at the moment:

The Halcyon Steel Twin 12 Set with Halcyon DIN Valves (Air G5/8" DIN ), Manifold, ECS Cylinders with about 14 kg each, V4tec SS Bands, Declaration of Confirmity. ( http://www.deepstop.de/dir-d12-halcyon-p-795.html?language=en)

One 2 Kg V-weight, to put between the tanks.

The Halcyon MC System Evolve 40lbs, with SS Steelbackplate with complete Harness, 40lbs Evolve Donut Wing, Halcyon Storagepack.

(http://www.deepstop.de/halcyon-mcsystem-evolve-p-501.html)

The New Deepstop Atomic DIR Regulatorset for Twintanks:

2x Atomic M1First Stages, with DIR Longhose 210cm, Boltsnap, 56cm Backuphose,  Bungee necklace, 60cm HP Hose with Deepstop 200 bar Mineral Gauge oxygenclean, Boltsnap, all mounted and ready to dive. (Optional: With the new and robust Miflexhoses!)

The famous German HESER Backuplight LED with Boltsnap.

Optional: The new Halcyon EOS LED Canister Light 4.5 AH. (http://www.deepstop.de/new-halcyon-eos-led-p-998.html)

We deliver the Set mounted and with 2 Years Warranty.