Hey there. I'm not sponsor chair or anything, and I don't know how big your chapter is so this may not work - but we just have the Pearls write down their top three choices for big sis, and then we rank the Pearls as to how we'd want them as our littles, (ie 1)Mary, 2) Charlotte 3) Gloria etc etc) and our sponsor chair matches them up. Tri Angels are done differently though, and often sophomores get to be a Tri Angel. Just my input
DL,