Dynamics of Grants and Institutional Scholarships?

Thanks for bearing with me!

EFC = 29k. The schools all meet 100% of need and have done so. Financial circumstances have not changed.

For the most part, the aid is a straight grant. In one case there is a Scholarship of 29k plus a grant for 10k. Would this indicate a different level of interest? (Because the total is the same as the grants at the schools the cynic in me assumed it is just a different manner to get our net down to the EFC, but perhaps that is not true.)

Schools involved: Oberlin, Wesleyan, Reed, Haverford
Net Costs (rounded): 29k, 32k, 28k, 28k