Looks like the ratios are getting dialed in. I've had a lot of luck with the following proportions: 1 teaspoon of coconut oil, 1/2 teaspoon of olive oil, 4/9 cup of Orville's popcorn kernels.
Mix the Flavacol into the popper with the kernels then add the oils. Put the whirly popper on the stove for a few minutes and the popcorn's done.
The end result is popcorn that is about right for my taste.