Having flown with manufacturers test teams, I can vouch that they are very good at 'maintenance' test flying, use hardly any SOPs, and certainly don't operate the aircraft in a manner reminiscent of an airline operation.
...and you say they should define the SOPs for us?
Rider, power is electrical; thrust comes from engines.
You're spot on about manuals though. Some companies seem not to have one literate person in the whole flight ops department.