Not trying to cause problems but the instructions for my SS say to NOT attach the fabric to the tank, rather attach it to rib 1 and 3 and the partial rib 2. That's what I'm doing.... Since I am a newby with fabric, I think I'll just follow the manufacturers advice.

Since I am at this stage right now, I did go back and recalibrate my iron and very slowly ironed that area over the tanks and the rest of the fabric at usual speed.

Maybe things were different with some of the older models?