RE: Idler wheel tilting
It should be checked at full draw, however there are some rules of thumb that can be used at rest. I switched to another bow company but still remember the 2 models of mathews that i had. On the LX with a straight edge on the side of the idler wheel, the straight edge should bisect the string 4.5 to 5 inches down. The legacy was to be set with the stright edge parallel to the string. You or someone may want to call mathews and find out what it is for the switchback, that I can't tell you. I got my info straight from a tech at Mathews from over the phone. Until I set the LX to the lean that was recommended, I could never get a good tune on the arrow. After twisting the yoke, the bow shot like a dream and serving wear greatly reduced under the roller guards and on the bottom cam. All the models will be a little different as with different ata and such, different amounts of energy are exerted sideways while the bow is being drawn.