Tips for farming in Masters?

Hey guys. I'm a near maxed th9 that just worked up to masters to start reeling in some de for hero upgrades. My farming army at the moment is 24 balloons, 50 minions, and I generally use 2 rage spells. This isn't too bad, but the train time is a bit long, i don't really like blowing 2 spells each raid, and i don't really like using 500 de per raid when that's what I'm trying to save for. So if you guys have a more efficient army comp or really just any tips in general I would really appreciate it. Thanks guys!