Great list of resources for prairie points!

I just did one that the points were 2 1/2 inches before folding.

http://www.modabakeshop.com/2009/03/...aby-quilt.html

I love making the continuous points.

What I know is if they are too big the points need to be tacked down. A button can be sewn on the points to keep them from getting messed when the quilt is folded. I haven't made any lately, I think I started with 4" square.

You can also make the continuous prairie points using two colors. The two colors will alternate. You start with sewing two strips together, then treat them as if they were one strip.
Three Methods ofContinuous– Band Prairie Points
https://extension.usu.edu/files/publ...b__7298330.pdf

https://www.craftsy.com/blog/2014/02...rairie-points/
http://quiltingdigest.com/two-easy-m...rairie-points/