Perhaps the Impulse guys and gals could post the question on Qrewroom.
At least you KNOW that QF management read Qrewroom and would probably get back to you.
QF often don't know what they are doing in six months (you only have to see how quick the Impulse deal came on to see that) so how they'd know they were getting extra 717s up until four weeks before (unless they publically announce it) I don't know!