I am about to start a customer wall hanging with machine embroidered panels that are quite stiff. Fabric appears to be a light weight canvas, and there is a woven interfacing ironed on the back as well as some unremoved stabilizer in some places. My question is what is the recommended thread/ needle combo? I once tried to quilt an art quilt piece with several collage layers on a stiff interfacing backing and broke several needles. Finally finished it on my domestic machine and broke a needle there as well! Any guidance before I start will be greatly appreciated. I have a Millie.