Thanks, Yeah I saw later that is sandwich bottom. Fully clad does make the most sense on a frypan to heat up the sides. Yes we talk much about thermal conductivity on cookware, but great point how it’s not nearly such an issue with gas as it is with electric. I use my steel core Silit ceramic Silargen coated on gas and also Sitram Catering and the Catering is more responsive and conducts almost to well and fast sometimes. However the Silit is still somewhat responsive and I don’t notice much lag warm up time with gas. Thick cast iron seem to take the longest to heat up, even on gas.
One thing I don’t care for, even on high quality PTFE, is that cooking oil doesn’t spread well over the cooking surface, even when heated. It’s like a oil & water effect on the cooking surface. I know you need less oil on non-stick but still need some usually and you can’t even spread it effectively on PTFE non-stick Teflon like surfaces.