yes that is a great one the one seam flying geese.
I seen that way back and it seams to be surfacing again.
The LG ruller is ok but the one seam is so much faster and I like the pockets.
You do not need the LG ruller if you have measurement to cut...
I really like Elanor's flying geese rullers but there are only two sizes. The one seam cam be any size.....
I made a wall hanging out of a packet of fab and going to applique something over the patchwork now....
Happy sewing