Originally Posted by
dungeonquilter
If you can, try to cut the triangles so that the straight of grain is along the outside. This means cutting the block twice like an X. That way you are stitching the bias edges to the edge of your blocks right away. Less stretching that way.
This might help:
http://quilting.about.com/od/rotaryc...g_shapes_3.htm
If you page backward/forward it shows the difference between 1/2 square and 1/4 square triangles...which ones to use for different triangle needs. It really makes a difference. Happy quilting!