rushing

I'm looking to rush sig ep this coming spring (sorry). My OA is a sophomore brother there, and I know six or seven guys. However, I've been caught up in a lot of drama with girls this semester, so I haven't gone to many of their parties and consequently don't know the rush chair too well, and haven't been invited to either social. I'm a very sociable person, however, very attractive as well, with a good chill pull ratio and like a 3.7 gpa. I have a lot friends rushing sig ep, and also have a lot of friends rushing ka, although I haven't been very involved with ka at all. Should I rush just sig ep, or both? What are my chances of a bid, so long as I make sure to get to know all the brothers during rush week?