How To Straighten a Blue Ripper Rail
Here is the technique we use to straighten the rail.
Set the ends of the rail on 4x4 wood blocks with the bend set curved up in the middle. (If the aluminum angle is facing down, set the rail so that the edge of the angle aluminum hangs off the edge of the wood block.)
Using some sort of support to hold yourself steady, step down on the rail providing just enough force to bend the rail straight.
Check straightness again
Repeat if necessary.