U- I is/ was in a weekly split with my XW similar to R2C's. My kids were 9, 15 and 17 at the start. They're 16, 22 and 24 now. Both D's are out on their own, XW and I still swap S16 back and forth.
My brother did a 2-3-2 split with his XW. He and the kids really hated it. The kids were living out of suitcases all the time. The constant swaps meant neither parent could track homework assignments very well. The odd number of days meant they weren't even swapping on the same day each week. They were constantly wrestling with coordinating where to pickup/ drop off because the kids were in activities (tumbling, football, etc.) I asked him about it early on in my S and that was a big reason I talked XW into the weekly split. XW and I both agreed 7 days was a long time to go without seeing the kids, so like R2C we agreed that we would incorporate one evening a week for the other parent to have the kids for dinner or a movie or whatever (when we D'd we wrote that into the agreement). In actuality we rarely used it because as it turned out, we both saw the kids quite a bit even on our "off" weeks because of school and after-school activities.
I really feel that the weekly split is beneficial in these situations. Homework rarely spans a weekend so it allows you to track the kids' work on your week and not worry about it on your spouse's. It also allows for a leisurely handoff on the weekend. We did Sunday evening handoffs, sometimes we would have dinner together with the kids to ease the transition.
