I got tired of trying to line up my color-coded tabs, so I designed a stencil to help me get it perfect every time. Then I realized not everyone has my same journal, bible, or tabs so I made it completely customizable.

Most parameters are self-explaining. I would suggest making the tab height shorter by the amount you want them sticking out from the page.
 

Tips:

 -Make the tab height shorter by the amount you want them sticking out from the page
 -A thickness of 0.6mm to 1mm seems to be the sweet spot for flexibility.

 -Using the LeftMaterialRemover (or right) at 2-3mm helps when the binding of the book in the middle starts to push the pages in more.

How to Use:

 -Measure your page and tab dimensions.

 -Input your dimensions into the parameters (Play around with it. Theres a ton of customization I included).

 -Print, align to the page edge, and enjoy perfectly spaced tabs!