I have double pieced all 10 quilts I have made. I just pick the side I want as my front and have my quilter go from there. It has not been a problem and sometimes we end up liking the back side better. I do it because I have so much to learn and since I have to buy the fabric anyways for the back, I might as well be learning from it.

Go for it!

If it's a large D9P block, it shouldn't be too much of a problem and I agree that the pattern is random enough looking that if you end up chopping off the top or bottom a little it will still look good.

Well if you do an all over meander it would look good on both sides.

That is what I usually have done, since meandering is my favorite. I have even had Christmas trees done on my Christmas one, and it was fine.

My nightmares: having a back slip as I quilt.. has happened.. very very sad..

hmmm... good luck !

I think part of the answer depends on what pattern you have on the top. If it's something that you want to meander all over, then the quilting will look good on both sides. If it's something that will have very stylized quilting, then maybe not so much, but still it might not be a problem. If you can show us the top we might have better recommendations.

I have pieced many of my quilt backs, and quilted them both on the DSM and on the longarm with no problems - but I don't use patterns on the back that require matching up, and the pieces on the back are generally much larger than those on the front. I like to get rid of as many scraps as possible on the back, so they don't stick around to haunt me. Of course some quilt tops just don't call for pieced backs (it's their loss).

I love to do some piecing on the back. What I do it make sure I have a good size boarder so it doesn't matter where the final trim is. good luck