I found instructions for measuring very confusing even as a prior customer. I use outside mount, and your diagrams have arrows going way past the area that I need to cover. Worse, nowhere does it make clear that the outside mount dimensions are measured from the top of the frame to the bottom of where the blind will reach. I haven't ordered since 2018 so I forgot these important details which should be clearly stated in your instructions.
The blinds had a small defect because someone assembling them did not know to split the pull cords through the small metal clip--they left the cords outside and worse, behind the clip next to the blinds. I had to untie each cord and restring them.