i use a heavy pan... i do use medium heat... i cover the kernels in the pan with a lid, but leave it a little off so there is a slight opening... i do not shake the pan... just leave it be... and i let them pop, pop, pop... after that is done, i pour the popcorn into a brown paper grocery bag... i toss in the sea salt and pour in the butter... i shake the bag and let it all coat the popcorn... then i pour it all into a big bowl...
I always had better luck with extra-fat yellow kernels than those petite white kernels.
Right now my popcorn is waiting for what happens with McDaniel in Mississippi. There is back and forth arguments until Sept 26, when the Mississippi Supreme Court will issue whether to overturn that lower scumbad judge who pulled that McDaniel waited a day or two too long to file his arguments.