I am totally with @Sonerai on this. I recommend 8U/10U Allstars in the summer while doing Rec league in season. Also, playing other sports during those seasons as well. TB at the younger ages are a recipe for burnout for families and the kids, not to mention inexperienced coaches that think they are coaching an 18U Gold team.When people ask me about travel/club ball for 8 and 10 year olds, I advise against it. There is no reason to play travel ball at this age unless that is the only option. They just need reps, positive reinforcement, and hopefully some good instruction on fundamentals. Kids (and parents) can get burned out early when they start this young. If your DD stays in softball, you'll need that money for 12U or 14U and above.
I remember parents on DD's 18U team were burned out and they were ready for it to be over. These were families started young and only did softball. DD played all of the in season sports into HS. She would say, I can't wait for Softball to start up. Distance makes the heart grow fonder.