That is a little presuming indeed.... It is possible that current assets that they post publicly are not part of the actual fund itself which may well be locked up in some BVI shell, I am guessing that most of us have life experience and no how to make the tax man uncomfortable, so in my opinion that is a poor judgement measure for any company. Public record is normally full of holes.The company behind Futex is Independent Derivative Traders Ltd. As of 31 May 2014 they had exactly £1,049,610 of current assets on their balance sheet. Considering they had about 70 traders at that time, that's only £15,000 per trader. That's enough margin for around 10 lots of FESX. This means the company can't give its traders the size they would need in order to achieve P&L necessary for a decent living.
These are pure facts behind all the smoke and mirrors. You can trade company's funds but these funds are not very large. Then you have a desk fee of £1,500, 40% of your profits and a tax of 20%. Simple maths.