Regarding perfectivity and sequentality of wayyiqtols I suggest that you
study Ezekiel 16:6-28. In v 6 the wayyiqtol (br portrays the event "to pass
by", and the wayyiqtols )rh, )mr, and )mr interupt this event an occur
inside it. It seems to me that there are up to 15 examples of wayyiqtols
that are *parallel* rather than sequential in the other verses.