How much T15-20 $ makes T14 pay attention?

[roundabout]

More general answers welcome, but specific situation is this: Without much leverage (scholarships from lower ranked schools and admission to T14) I was able to negotiate a couple scholarships from T15-20 schools. How much do the T15-20 scholarships need to be to get the T14 to take notice?

I ask because I'm considering going back to one of the T15-20 schools and asking for more, even though I have no additional bargaining chips, because the T14 (Michigan) will only reconsider merit scholarships once. I'm worried I don't have enough right now for them to budge. I feel embarrassed to go back to the T15-20, as they originally offered me nothing and I got them up to something, but I guess it's worth it if it helps me negotiate better at Mich, which is probably my top choice. Any thoughts?

[beesknees]

PM'd

Good luck!