For the elder just scrunch some gel in and that should hopefully tame her. I recomend la looks sport gel or herbal essences set me up. Go for a strong hold and put in enough, if it gets crunchy just wait until her hair is 100% dry and scrunch out the cruch ou coul also try plopping oh of your girls over night so they wake up with damp hair and then you could scrunch in some more gel mixed with water to ensure no frizz. You can probably do the same you your younger girl too just make sure you co wash and Detangle with a wide toothed comb in the shower with conditioner! For our long haired girl I would ask if you could get an inch off (so it won't be tangy and then you don't have To rip out her hair)