Rob: my ruler looks like this one:
https://smile.amazon.com/Wrights-4-I...y+einmo+rulers
I used the smallest size there of 1 1/2 by 3. Sounds like your ruler's smallest unit is 2x4....
Then I sliver trimmed them with Deb Tuckers Ruler: WIng Clipper 1:
https://smile.amazon.com/Studio-180-...s=wing+clipper This ruler isn't necessary, but it sure made lining up the points easier!
Also...glad you liked my colors. The 'tangerine' is really fun!