@homerdog Based on our experience, we had a very limited window of opportunity for accepted students visits for my D17 because of demanding and inflexible performing arts rehearsal and performance commitments. We were very glad that we reserved my daughter’s Spring Break for college visits. In her case, it happened in mid March and there were only so many she could visit because we had to fly in from a distance to do a circuit of midwestern schools. Her schedule did not match up with any formally scheduled weekends for admitted students. What she was able to do was to coordinate with admissions for a tour and to visit classes, the last element being the most crucial. She is a life of the mind type (IIRC, your son may be similar?) and while class visits can be idiosyncratic, by visiting two or three different classes per campus, she got a sense of professor-student and student-student interaction that was vital in making her decision. One of the schools surprised us by becoming a lead contender when it had been middle-of-the-pack previously. Another fell off the list completely. One of the schools had not yet released its admissions decisions my mid March but she visited nonetheless and was glad that she had. Her acceptance came a week or two afterwards. Given time constraints and the randomness of host experiences, she did not do overnights. That Spring Break trip was very important to her decision making process.