It's very easy to forget about the cotton nearest the coil but thats probably the most important part.
If it's not in the juice well it's sat on the deck seeping juice.
Not got this one, but just in case it helps, on these type of decks the last thing I do after wicking is poke my cotton-prodder under the wick on each side of the coil and lift slightly to move the wick away from the air hole.