david ,have you thought about a publisher like beekay who produce most of the carp fishing books ,i ,m sure even if they did decline they would give you loads of decent advice (the proper advice )as i,m sure by what you say they are taking your money and runnin.just go into a tackle shop and see who produces sea,fresh ,game books and ring them up for a chat .
check it out though before you pay money dave ,all the best mate