One of the things that might matter is the number of years between that not-so-great undergad and your current GPA. Unfortunately LSDAS is going to calculate all of your information in together, so your LSDAS GPA will probably be lower than you hope.
Well, I was dismissed in 2000 and I ended up at my degree earning college in 2003, so I guess not much time has passed. In my mind, there's a big difference between a 19 year-old and a 22 year-old, but law schools might not see that.
I realize that LSDAS will be sending a cumulative GPA to the law schools I apply to, but I was hoping that they would also send the individual transcripts. That way, the abrupt shift in my GPA would be evident when viewing the old transcript and the recent one in chronological order.
You'll probably just have to explain and explain everything you can through your PS and an addendum to your application.
I'm not sure if I'll be going into that in my PS, but I have already written up an addendum that explains the circumstances of my early low grades (namely, that I shouldn't have entered an engineering program when I was so bad at calculus!). In the addendum, I specifically point out how my later grades were on the opposite end of the spectrum from my earlier grades.