You mean the little Mugen combo she does? Yeah she gets around 6-7k I think(check the combo section since I haven't learn it yet).
I don't really think you can even get full stock charge in a match and shouldn't waste it on her Mugen combo since they can always burst out, or you screw up the timing, or if it connects even :/
You should have about 2-3 charge bar in this matchup. Though I've been becoming really conservative near the end since I tend to for time over with tager.