Prism99

Okay, I screwed up again with the name. I meant the disappearing 9-patch rather than the double 9-patch!

Do you have a beginning quilting book? I really think it is a good idea to have one on hand to help you with techniques, especially if you want to learn strip-piecing (what most of us use to speed up the process of making blocks).

Here is a link to a picture tutorial on how to make a double 9-patch by means of strip piecing. A 9-patch quilt is composed of just 9-patch blocks; a double 9-patch alternates 9-patch blocks with plain squares.
http://tinyurl.com/cd7w9k

Here is a link to a picture tutorial on how to make a disappearing 9-patch. For this one, you make a large 9-patch block and then cut the block and rearrange the pieces.
http://tinyurl.com/ccn6hn

The fewer seams in a block that need to be matched, the easier the blocks are to put together. With a rail fence pattern, the first time you need to match seams is when you sew one row of blocks to the next row; you just need to match the block seams. When you make a 9-patch block, you already have to match seams inside the block when you attach row 2 to row 1, row 3 to row 2, and then you still have all the block seams to match when you sew row 2 of the quilt to row 1 of the quilt.

What I was trying to say, in my senior moment way, was that the easiest quilt will have a block pattern that does not require matching seams within the block. Rail fence is like that.