You should try to get to know the 2 sororities before you decide neither are for you. Set up a meeting to go for coffee with each of their rush chairs and then if you really, really don't click with either, then maybe it could be in your best interest to start a new chapter or colony. But keep in mind, nobody is going to recognize your chapter unless you're offering something that dpsid and dpi aren't. they're both WONDERFUL sororities with great reputations and i think you should give them a chance
