It's possible, darrello, but I suspect something else is going on there. 88% to 78% is nice, but it is still high. Usually, you can expect to see a nice bump when utility hits 50%, 30%, 20%, and 10%.
Are you sure one of your CA's didn't fall off?
Either way, congrats. That's a nice jump.
Is your score from Myfico? If not - then it really doesn't mean anything.