Yes, you can do this. I think this was suggested on another post of this same topic.
Originally Posted by
SueSew
This is probably a dumb beginners question regarding bias. If the final triangles have bias on all 4 sides using this 4-at-a-time method, then why not cut the original squares on the bias? That way you sew the outside edges on the bias which may require a little spray magic, but the outside edges of the final 4 triangles are all nice and straight.
???