Should I wait for some more offers, or start doing it now when the $ isn't dried up
My situation:
With my numbers (167 / 3.48 it looks like the t14 won't be for me

So far this cycle I've received 2 bigger than I expected scholarship offers from higher ranked peer schools.
I then received 4 dissapinting offers from lower ranked schools in which I thought "I'd go if they gave me almost a full ride".. didn't happen.
I also received a pretty hefty scholarship offer from a lower ranked school
Should I start negotiation process now with these 3 schools (try to get a full ride from the lower ranked one with 2 higher ranked decent scholllys) AND try to get more $ from higher ranked schoolys by competing them against each other / higher offer from other school
OR
should I wait a little longer until I hear back from some more schools (I'm still waiting to hear back from 5 schools that would be peers with the 2 higher ranked offers / 1 lower ranked school)... even though on some of the higher ranked schools it looks like I may be in for a WL since its taking so long / they start out only giving acceptences