Hi Wako and welcome! I dont think I will make it to Cleveland this year as CApe Town is a bit far but I'll bear it in mind. Think about your plate config! -nn+nn-nn+nn- What a waste..... shuffle it round in your head a bit and remember that its the negative plate you want to produce best, with as many neutrals as possible, ideally 3 or 4!
+nnn-nnn+ is the only one I use, I found it to be the most efficient as the single negative produces well on both sides and the neutrals keep the heat factor down!
All the best!