I became so frustrated using the cumbersome two shot shooting mode of the Phase backs that I decided to just work with the lack of power management and additional power drain and switch to 'Zero Latency'. I was very surprised to find that power management (automatic timed power shutoff) actually works with my back in that mode - even though Phase states that power management is disabled in 'Zero Latency' mode. That may have applied to the older CCD backs..... I don't own one anymore so I can't test it. I then decided to check the power drain between the two latency modes. I left the back on for one hour with Zero Latency and Normal Latency without touching the screen and measured the voltage drop. Again I was very surprised to find the difference very slight. Normal latency resulted in a voltage drop of 3.18% and Zero latency resulted in 4.15%. That's not much of a difference. During all of this time the back temperature rose 14 degrees (85 degrees with ambient temperature of 71 degrees). Using just a simple cable release for the lens is very liberating and there are lots of inexpensive cables that can connect the PC sync to a sub mini connection.