Tensioner design could be improved

[jon-harper]

The current invertible tensioner design is both bland and a little confusing: the screw is above on one side and below on the other. This is okay, but because it's hard to see, it's not intuitive. Consider redesigning.

[jon-harper]

This is now a bug that was introduced at some point. I may need to rollback some changes for now rather than redesign.

[jon-harper]

I fixed the issue. It's not directly related to a redesign, so this remains open.