You know Andrea, I don't know. I wish could help. I didn't do the RT's in the pattern if that matters and my "blocking" tool was decidedly rectangluar now that I think of it. I dried the bag upside down over a rectangular shaped tupperware container that was the same height as the bag. I'm not sure what did it, but that's what I did. :shifty:
I love yours in my blog tho (was it you that posted? I'll check again) it's actually closer to the shape I wanted. :roflhard:
If you mean the shape of the actual mouth of the bag, it may mean making sure you pick up enough stitches on the long sides so that they are sufficiently longer than the short sides. I noticed when I was picking up, I really had to pay attention to make sure I ended up all the stitches I wanted all around (I prefer things to be symmetrical that way :rollseyes: ).