my two cents: refunds avail if i have overcharged,
your skimmate is nicely brown, the bubbles are not popping due to all the protein, so that is good. dry is when the bubbles pop below the neck but there are enough of them (small dense) to shove the skimmate up the neck and over into the cup. wet is IMO defined by bubbles overflowing into the cup regardless of the size of the bubble.
the fact that yours are huge could be a symptom of the pump not creating enough small bubbles or those bubbles combining into big ones instead of popping. if you lowered the bubble level ,(i do that by lifting the skimmer onto plates and increasing the flow out of the skimmer) then the large bubbles would have room to pop, after a few days of running like that i clear enough of the 'surface tension' and am able to lower the skimmer and get the same results without overflowing the cup.
this is my impression, i hope it is helpful