I noticed early on that the new glasstop (not so new now) was a whole different animal.
I still don't understand the "pulsing" on and off. It may be an "energy conserving" feature, as when it takes FOREVER to pre-heat the oven. I've gotten used to it.
That said, once the new was worn off I was allowed to use C.I. and haven't had any issues.
I strive not to drop heavy pans anywhere