Hi N,
I too saw those fx factory threads a few months ago, the former seemed to had ended in tears when teddies were thrown from the prams over accusations of someone "profiting" from the op's concepts and selling ideas commercially, whilst the latter (as you quite rightly mentioned) has a large wealth warning attached - given because back testing showed a wipe out situation....
Like you, I'm not a fan of EA based trading as there is absolutely nothing on this planet (read, affordable to us mere two-bit traders!) that can replicate what our tiny brain's can take in when looking at charts and seeing a mixture of recent history and current price action - the 'net is littered with so-called fool proof 'bots that make fortunes; fortunes for vendors maybe, tears for users though!
I hope you dont deviate away from your past year's excursions into this mind blowing correlation concept as I can, and do, see it working day-in and day-out if one is just patient enough and careful enough to select the correct flag and go with that and not expect those snake oil merchant type promises of squillions of buckeroos every day - pop small and go for small pips, its consistency in small amounts rather than inconsistent dream land enormous gains!
Hasta manana and regards,
Simon.