I have used a lightweight iron on interfacing and it has worked really well. I jusy butt the two pieces together, iron on about a 2-3" wide strip on both sides of the batting and it quilted beautifully. I wouldn't overlap because it might make it lumpy in that area.
hcarpanini - what a great idea! I'll have to try that next time. That way, you don't have to worry about the edges being perfectly straight! Thanks for the tip!
