I'll try to be brief. Sounds like you have what we refer to as "cam lean". You can correct it, but only with the top idler wheel.
You need to remove tension from the limbs and remove the right side cable yoke from the limb tip (right handed bow). Add some twists to that yoke and reinstall it and see how it lines up. An easy way to check it is to hold an arrow to the side of the idler along the string. The two should run parallel.
The process is mostly trial and error, but I often start out with 5-6 twists and have added as many as 16twists with one bow.
A bow press is handy for this, but if you don't have one you can just back out the limb bolts till the rigging is slightly slack.
Don't worry about the rounded limb butts. Won't hurt a thing.
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