KY is a great wax and seems like you're using 8% FO load which should be fine for most oils. I completely agree that you need to add oil at 185 degrees. Stir for at least one minute after you add the oil to the wax. I make my own wax blend and my pouring temp is not important since I don't get a dip at all on the tops. Years and years ago I used KY and as I recall, it also does not get much of dip. With tarts/clamshells, pouring temp has to do with the way the tops look, not the scent throw. You might want to try 9% which would be 1 oz oil to 8 oz of wax, total of 9 oz and/or heating wax to 185. Who are some of you FO suppliers?