You should be able to see if any of the lines are crossed inside.
It might be good to have a helper pulling the different lines while you are looking inside.
If you have two line reef - I doubt there are any balance blocks there.
The blocks you see are most likely to be purchase for the outhaul.
There is a balance block. I took it out by pulling the leach reef line. There's 2 separate lines for each reef. The out haul does not need a block, nor does the topping lift. Maybe I'm using incorrect terms.