The predive checklist is kind of mandatory, when diving on a Boris, as it's the first thing the primary display shows after turning the unit on (in normal turn-on procedure).
It's very easy, 'cause the display prompts everything you have to do, and you have to press a button to continue...
Yes yes, you can just abort the predive check, but then you'll be diving around with an alarm for the entire dive (can be turned partly of though)...
When I dived with my Inspo I mostly followed the predive checklist, but quite quickly I memorized it, so....
Cheers
Bo Urskov