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I know that Ricks have 2 truss rods so is it best to try to make sure they are both adjusted equally?
Ideally, yes, you'd want to adjust them both the same. But there might be times when they need to be adjusted a little differently from one another. Your best bet is to get a 24" metal scale (ruler). That way, you can check for absolute neck flatness on both sides of the neck, and adjust each truss rod accordingly. Just place the scale on edge along the length of the neck on one side (on top of the frets). If there's a gap in the middle, the truss rod on that side needs to be tightened. If there's a gap at either (or both) ends, the truss rod needs to be loosened. No more than a quarter turn each, with a 24 hour waiting period in between adjustments. You can play the guitar during that time. Adjust each side of the neck for dead flat, then set your bridge height for lowest possible action with no buzz. The final step would be to set intonation.
Keep in mind that if the Rickenbacker your adjusting the truss rods on is a 1985 or earlier model, you cannot just adjust the truss rods. For these vintage models, the neck must be bent manually into position after lossening the truss rods, then snugging the truss rods up. This is to prevent the fretboard from possibly popping off.
