I would strongly encourage going to preview day. I have no conection to Bama, but I would assume there preview day with so many houses would run similar to the one at my school (whose campus total is smaller than Bama's quota lol). I attended SUmmer Preview (it was only pnms) and it only lasted about an hour and a hlaf, but I loved it and it really helped me prepare for recruitment. It allowed me not to be as anxious during the first day of recruitment and I felt like I already had a connection to some of the houses. Also some girls mentioned the fact that I had gone through preview and were glad to see me back. On a personal note, my favorite house on preview day ended up being the house I'm now a memebr of; I actually had to miss this house the first night of recruitment for class and had I not gone through preview I would of never put them down to go back to the second day and cut a house I had actually seen that night and would have never seen them during recruitment
and would not be as happy as I am today.