I went to informal chapter as a pledge (without ritual) and had nm class meetings as well. I come from a chapter 0f about 40 and it wasn't shocking or disorienting at all, it was nice to already be accepted into the sisterhood. we had a meeting before chapter to discuss what went on, and it was good to learn by observation so that when my time came as an active I knew how things worked within our chapter, not just on paper. I also think it's fine to keep the newmembers seperate, and I think other just for new member activities are very important. I did a scavenger hunt, but some sisters came with each group...it was fun and harmless. Just wanted to mention that going to chapter as a pledge isn't so bad.