Willowize that's what I was thinking to use due to the BB lowest setting is 4v. I got my diver today but it's seems like when I assemble it and screw the top base on its seems to cut the silca wick and doesn't seem to be enough strands to soak up the juice
When I tried silica a couple of times, this happened as well. What I do is take the threads of the silica strand apart and spread them out. The single piece of silica strand seems a bit too thick, and gets cut when you screw the Diver on.
Having silica from multiple sources, I think the silica used and sold by Atmistique is wound a bit tighter than others. Therefore it is a bit narrower, which is why it fits. Most other "2mm" silica is a bit looser, or perhaps it has expanded since it was first manufactured, likely due to the individual threads becoming a bit looser since they were first twisted together into a 2mm rope.