I'm a very wet skimmer. Probably because if I don't, my cheapy skimmer pulls nothing out. It's a piece, but the wetter it goes, the better it does. I only have a 10 gallon, and I don't mind topping off the cup of water it skims off per day, and I hardly feed, so that's probably why it's more like a tea than anything else. And I, too, agree that if it's darker than tank water, it's still a success!
Also, I was worried about the Calcium in the wet, so I started dosing more after testing that theory out. With no skimming/very dry skimming, I kept my Ca levels up a lot higher. Now since I go the moist route, I have to dose a lot more. A LOT more, in comparison.