Thank you! it was a switch up for me as I am not usually into the soft and pale look, but it was a nice change and perhaps that got me moved outside my norms, as after that I started using white. Imagine that!
Size of the strips ... doesn't matter. Usually you switch that up according to the size of the print you are working with.
30° vs. 60° ... To do a six-piece OBW, you use 60° cuts, as you need to end up with 360° for the complete circle. If you were only using 30°, you would need 12-pieces to get around the full circle. 8-piece SAWs are 45°. Another fun one is the 4-Patch Posey, where you only stack four layers and cut in squares.
Rulers ... doesn't matter if you use an actual triangle ruler, or a rectangular one. I've done it both ways. What matter is accurate cutting.
Starch ... I took a class for the one in the link. Before going, we were told to starch of Best Press the fabric well. Working with all the bias cuts, the starch helped it all go together pretty darn slick!
Love those fabrics .... The conventional "rules" say to not use stripes in a OBW, yet if you look around you will see some pretty amazing OBWs that did use stripes.
The worse part of a OBW and yet the exciting part is that you don't know what you are going to end up with until you actually cut and sew. I love the surprise that comes with doing each set, and the different designs that show up as you work along.
One good way to check the fabrics .... stand two mirrors together, fanning them out until you see six reflections (or 4 or 8) and see if you like how it looks. I just bought two school-kids locker mirrors and duct taped them together.
You're pretty adventurous and creative ... I am sure you are going to turn this into a phenomenal finish!
Look forward to seeing it!!!