I agree with pretty much all JF says

I'd still like to see start and end pressures, particularly for O2 as this way you can work out how fast your metabolizing O2 and I've found this varies from dive to dive. Your right dil pressures are different, SAC is irrelevant in CCR. That said, if I have the pressures included these then ios sync with my iPhone and I have immediate reference to how much gas I have pre dive and whether I need to have cylinders filled prior to a dive without having to test the pressures. A small thing but if it was available I'd use it.
I like the cell time recording as an indicator though the only sure test is a mV check prior to diving. Cell life is affected by so many other factors other than just time in use
Keep up the contributions and invite other CCR divers to provide input.
Regards,
Martin