Originally Posted by
Unimatrix One
NH is notorious for frequent equipment changes. There are numerous posts in the NH forum about routes switching back and forth between IOJ and non-IOJ equipment (or switching between 8-abreast and 9-abreast 787s). I personally will never book NH long haul for this reason -- too much risk of getting switched to an inferior seat.
TG notorious, yes. NH I wouldn't use quite that strong of an adjective.
What I think you are thinking of is that on certain routes where there are two daily flights there is one what is IOJ and one that is non but it is very easy to see and know which (i.e. NRT-ORD...at least it was last year).
I believe they're redoing all the Y seating so you'll soon have all 9 abreast so don't worry about that.