How old are your daughters? Would your quick service meals be during non-peak hours so that you can avoid crowds? Are you OK with that much quick service? Just a few questions to consider because we find that CL and non-character ADRs mix well for our family.
Our boys are ages 5, 12 and 13, and we are now down to one character meal per trip. But we make lots of non-character ADRs because we all love Disney dining and we like to avoid standing in line, the rapid-fire ordering process, searching for a table and juggling trays when we eat. TS is so much more relaxing and the perfect kind of downtime for all of us. It doesn't have to be a big meal, especially if we've been in the club lounge before dinner. We've done the dining plan in the past, and felt like it was the inflexibility of the plan that tied us down, not the actual ADRs. Without the dining plan, we have complete flexibility in what we order - appetizers or soup and salad instead of entrees if some of us are not that hungry, for example. We can eat as light as if we were at a quick service location, but get the calm atmosphere of a non-character TS restaurant.
If the kids want to get back to the rides/shows/etc., we can usually be in and out of a restaurant in an hour or less, if we want that. If we know what we want and don't order multiple courses, it's pretty quick. (Although we now stay longer by choice for dinner, now that they boys are older.)
So many great non-character restaurants in and around Epcot - Via Napoli, Chef's, Rose and Crown, Le Cellier, Bluezoo, Il Mulino, Yachtsman, Flying Fish, etc. Just a thought if your daughters are getting older and might enjoy that as family downtime!