What Mark really has is not so much a mathematical system but a collection of factors he personally uses to identify a betting proposition. What he uses may make him more or less successful than the one used by you and I but its only a collection of factors he uses. The point is he has come on without abusing anyone or making ludicrous claims and basically wants to join in, if his system is rubbish then he will stop posting it anyway, if he starts to show decent and consistent profits he will rightly find many plaudits here and if as has been quite reasonably suggested he is only looking to cultivate future customers for some dull system then quite rightly he will be shown the door with advice of where to stick his system ringing in his ear. Until then there is no harm if we presume he is a genuine and sincere man until he proves otherwise.