Anyone have any experience with the Halcyon/Abysmal DIR system using backplates, wings, tank bands, and the 'long' hose setups? Please e-mail me, I need as much info as possible to make an intelligent decision about switching from conventioanl 'sport gear' to the DIR system. I am a sport diver, not a caver or wreck diver, but think that the DIR system MAY be better than current sport diving setups. Thanks!