With the Rayon wicked as @johan detailed above, I still had a bit of moisture from the RBA air hole. With Native Wicks I have no leaking at all. With thinner juices (50/50 and below) I stick tiny pieces of the wicking material in front of the 2 open inlet holes opposite the screws as well.Loving the RBA coil but the linkages really gets to me, I change the coil for the first time and after re-installing it, it didn't want to fire, took some trial and error to get it working, it seems like the wicking was blocking the inlet holes on the RBA base that was my ploblem but now is working again, even though the leak through the base airflow is still there