Adding brakes to trailer ---help please

I have a 2004 Aliner trailer that came without brakes. I purchased 10" brakes for it and began the install yesterday. All directions say the magnet should be in the 6:00 position to work properly. These, because of the configuration of the mounting flange are at about 5:00. Is this a problem or will the brakes work OK like that? Interested to know what the experience is of those of you who have added brakes to a brake-less trailer. Thanks for sharing your expertise in advance.