Hi there.
Remember when LOSS OF SYSTEM A/B had nothing on it, like 6-7 years ago. Then someone decided to give you a list of inoperative items.
Yeah I know we all study hard and we will remember them by heart by... you know what I mean, was a must IMO.
I've always wondered why they aren't adding something like "you're screwed with no engines so remember you can still do...".
If you see the QRH is always assuming that you're recovering at least 1 engine. What if not? Why not a short heads up on what's next? Will I be able to extend any flaps? Lower the gear? Etc..
Regarding your question, IMO I'll keep up and down with the start levers. As someone pointed up in the post, why not? Just do it until you get back one of the engines at least.