This is what I have done so far in the last 3 months.
Paid off a revolving collection account: 2,200
Paying off 1,600 collection credit account.
Paid off 160 collection.
Added two new credit lines: 550 total limit, I have paid them early and more than the minimum 3 months straight.
Got one collection account for 194 taken off which was not mine.
I did add some inquiries!
I still have some collection accounts left totaling 650.
My scores are:
experian 526
trans: 567
equifax: 558
Experian dropped 40 points the other two increased.