I made some potholders last week and used insulbrite. I just quilted about 1.5 inches apart on one and about 2 inches on the other. We saw the iron tote at a show yesterday, it was cross hatched about 3 inches apart . It did have insulbrite because I remember remarking to my friend "What a good idea, I wouldn't have thought to use insulbrite. So I say go for whatever you want to do.