Originally Posted by
mahasamatman
I'm pretty sure I've seen it happen, getting an upgrade even with I0/X0.
But that doesn't mean much as I have been upgraded - ahead of time - in many, many instances when I was 0 on individual segments.
So I'd side with
wimpypipsqueak and accept I>0 on such a constellation as the only proof.
I do however accept that IM does take an active role in this. I have been upgraded on married through segments with I0 and D0
ahead of time.