My idea would be maybe we all put in £50 (or double monthly contribution) on month one, that way we can keep half back in case anything we deem as a bargain comes up at short notice that way we have the money available to not have to wait for people to pay up.
Anyone thats serious about this should sign up for a 1 year minimum, and we have a set value of how much we put in (one person cant put £100 pm and everyone else £25 it will make the admin side of it a major headache.
This is the big one for me, poker players are notoriously unrealiable we would have to make sure that everybody understand that they have to contribute every month or they are out immediatly. They would only getting back what they put in if the fund is in profit or only getting their share if there is a loss...call it a penalty clause, people should not be able to use the fund to push up their bankroll or pokerplaying habit and then later get back in again.
I can see there being 2 tiers;
One is the 25£ a month and the other a £50 a month, this should be fairly straightforward to maintain. You should not be able to jump between tiers as the admin side would be hell.
Pay-out of profits is a tricky one, I am more than happy to let my money in for years to come at the moment as I can afford to do so (at the moment). But I reckon after each full year people should be able to withdraw the full amount , unless the majority says that they would prefer that everybody gets their profit paid out at the end of the year and people have the choice to quit the fund at that stage. I reckon those are the only two ways to keep the admin side manageable.
I would suggest we'd discuss the shares to start off with and then pick 2 or 3..every 3 months or so we could then decide wether we would stick with those shares, add some new shares with the new money that has come in, or sell those shares and move everything on to new shares. The new shares could also be decided at that stage. People can put their case forward as to why they suggest taking a certain course of action or why they like a certain share and would suggest investing in it and we could all just vote on it (Via a poll ).
just a few quick thoughts.