Quote: (Originally Posted by
Ben Field)

The BOV shown at the dive show in '07 rotated to switch from CC/ADV to OC (apparently) the one on show at LIDS was CC to OC according to the marks on the yellow index ring
The prototype at the last NEC show had 3 positions, the one at LIDS had been changed to 2 positions (OC/CCR), it no longer had an ADV built in.