We have a group of 14 sharing an L4 Cub,we each have equal shares and the value is roughly based on the percentage of aircraft value,but it is not monitored or controlled.
We also have a substantial engine fund that does not feature in share value.
Out of our group I would guess half of us fly regularly,some a bit and some hardly at all.
We use e-allocator for flight booking and messaging,as well as e-mails.
We have one meeting per year to discuss funds and any other issues.
It all works very well and is a friendly and workmanlike set up.
Lister