The WYSIWYG breaks the code every time

WYSInWYG is the better way to describe it...

yeah I never use the visual editor, just do everything in code and then either preview or use the new Save & Edit button and then refresh a PDF I had previously printed to see the output. But yes for like adjusting the position or size of something, it’s just trial and error.

When creating a brand new template (address label for shipping), I had an okay time with mocking up the doc externally, exporting it as html and using that. Granted you have to tidy it up quite a bit (converting formatting into css, changing out constants for fields)