I turn mine up to the highest temp (on mine it's 400) then add about 2-3 tbsp of oil (enough to coat the bottom well. the kernels shouldn't be swimming in it) Drop in 3 kernels and cover it with the lid. After they pop, I pour in about a half cup of kernels and cover it again. It won't take long for them to pop. No shaking the pot is needed. Mine is large enough that the popcorn only reaches about half way up so when the kernels stop popping to the top, I opening it up and season it with salt and whatever else I'm in the mood for. Then I dump them in a bowl and season them again. If you like butter you can toss a few tbsp into the pot while it still hot and melt it. I'm not a fan, I find the oil is enough for me. The whole process takes less then 5 mins and makes quite a lot.
Let me know if you try it out and how it works for you.
Let me know if you try it out and how it works for you.