I had planned to purchase the strips sold to fuse pieces of batting together. The owner of the LQS sold me a light-weight fusible interfacing (not the tricot) for $1.00/yard. I think she said it was a non-woven. It is 60" or so wide; a lot more for your money than the packaged stuff. She sells in 5 yd. pieces. I just pin the outside edge and then cut off 2" strips.
When I prepare the batting pieces to be fused, I lay one atop the other and cut w/scissors or cutter (crocked is acceptable). Remove the thin batting strips and you will find they butt together perfectly. Lay on the fusible and a pressing cloth, and press. Works for me.
Sorry folks. I did not read this entire thread and hope I have not been redundant.