CB77 brake cams

[Kaiser Karl]

Hi folks
I've posted this in "transmission" due toat senior moment! G has already replied however I'm re-posting in the correct section.
Relined shoes in both brakes; the rear has the cable fully adjusted and the brake is poor. The front isn't as bad but not as good as it was with the worn linings! The levers are lined up with the dots. I've just seen that the cams for front and rear are different part numbers and I didn't separate them after disassembly. I've just taken the rear brake out again as G asked if I had adjusted the linkage so I'm give it a look to check the operation of the shoes.
Anyone experienced similar before taking the front wheel out to check the difference in the cams?
Thank s for any suggestions especially about the cams being different.