What's more important is that they are revised and reviewed very frequently.
mmmh, not very "Standard" if they are revised very frequently, and presumably not very good for the same reason - I think it would be better to get them right 1st time, or certainly after perhaps 1 or 2 revisions. Frequently revised SOPs is nothing to be proud of.
For you to say they are SOP's therefore we must obey....is pathetic
So, not only are they changing all the time, but there is no inclination to apply them. Just remind me, what exactly does the acronym SOP stand for and what is their point?
Perhaps you could let us know which operator you have been flying for, so we can have a good laugh!