Adjusting a roller trailer to fit a 23

[thedink9]

When I bought my roller type trailer a few years back, I never consulted anyone in adjusting the roller arms to make sure they fit the hull properly. I have now knowest that a few of my forward rollers seem crushed. The roller arms seem that they are spaced too low (or inboard) on the hull. I am going to replace the rollers with new PVC type non maring type anyway, but when I do this I also want to set the roller spacing up properly. Can anyone explain how this is correctly done? Thanks Rich