Entirely agree that the cable's role should not be overlooked in a "butler did it" scenario. Even the slightest wear or dirt can cause indexing issues, making the cable a crucial suspect. Adjusting cable tension is a simple yet often neglected step, akin to finding the missing piece of the puzzle. It's cost-effective, too, saving you from splurging on a new groupset.
However, let's not completely absolve hangers of their potential guilt. They do bear the brunt of impact and can bend or twist, causing shifting problems. But, before jumping to conclusions and condemning the hanger, it's worth examining the cable.
In essence, the cable and hanger work together in bike maintenance, like a team where each member has a role to play. The cable might be the unsung hero or villain, but the hanger isn't entirely innocent either. By considering both, you're ensuring a comprehensive approach to bike maintenance. #bikecare #cableandhanger