Lightning lane for groups

What is the maximum group size for booking lightning lane and individual lightning lanes? I have a group of 11. Will I run into any issues if I try to book them all myself? We are already connected as friends and family on the mde app.

There have been some reports of problems booking for larger groups but I think that was 12 or more. Of course it’s possible nobody has tried for 11. Hopefully someone with experience will weigh in.