You maybe haven't experienced Flying in the top end in the wet. You need weather radar and Believe it or not Anti Icing if you flew above say, FL180. Darwin is the Place to experience thunder and lightning, preferably from the Ground. The Intertropic convergence zone on the Way to East TIMOR can be some of the most extreme weather you will ever encounter with Cb Tops to 60,000 feet like a wall of Green ice to look at. Planes Have disappeared without trace there.. Nev