All our cast iron is Le Creuset.
Cast iron has never been quick on any type of stovetop.
I agree about carbon steel though. Underappreciated although gaining more attention.
That’s interesting, can you compare the heat distribution problem to resistive? I have a gas range now, but when I had resistive I would preheat my cast iron in the oven for nice uniform heat distribution
https://upload.wikimedia.org/wikipedia/commons/8/8a/Iron_car...
I thought this was true (it makes some sense), but the data seems to show the opposite. This source has cast iron at 52 W/m-K, and 1% carbon steel at 43 W/m-K (0.5% carbon steel is at 54 W/m-K). Now, this obviously depends a lot on the processing and heat treatment of each material. But at the very least, the difference is not massive.
https://www.engineeringtoolbox.com/thermal-conductivity-meta...
High carbon steel pans (the kind used by kitchen services) have been brilliant. Every time I've seen an induction cooktop in use in a commercial service (for example, at my work place cafeteria at the "rice meal" station) they use high carbon steel pans.
The biggest problem: no cooking during power outages, which happen around 2-3x a year.