I didn't find the firm interfacing hard to sew through at all. I used Pellon brand iron-on in the mock-up that I made first for me. I used fusible fleece instead of the interfacing in the tote I made for Jaba. Both give body to the tote, just different feels.
Thank you.I have way too much fabric,but need to order anything Joanns doesn't have.
I finished my tote today!! I'll be mailing it out this week to Quilter Momma! I hope she wanted a large one!! I got a bit carried away with my design.....!!!