Darkydog. Why don't you just come clean and flog this bloke's book unashamedly. Any "professional" will tell you that flat staking is often preached but rarely followed. Most "professionals" don't have the discipline to stake at level sums - everyone puts a little more on when they feel that their neddy is a little bit special. But mathematically, if a system loses at flat stakes, it's a loser full stop. You can't make a silk purse out of a sow's ear by varying your bets.
You say, reduce your losing bets and load up on the winning bets - that's fine, which are the winning bets?