You asked, “I would like to know if any of you have made the Professional Tote using an iron-on light-weight batting instead of decor bond. I would assume I would have to quilt or stipple the two layers together.”
The tote would look great with quilted fabric, BUT, make sure you only quilt the main fabric. You can put a muslin backing on it or just quilt together with the fabric and the batting, the lining will cover the back side of your quilting. The bag will be softer when finished then it would be with Decor Bond and it will be like a pair of jeans and get softer with use. Make sure to Decor Bond the contrast fabric and lining fabric as stated in the pattern.
Happy “Creative” Sewing.