What works for me:
I use rapid rooters, and clonex for my clones. I have found that by placing the rapid rooters in small ( 2 or 3 inch ) pots, surrounded with a light soil/coir mix that I can control the moiture a whole lot easier. Usually I water once, when I take the clones, and don't have to water again. The soil acts like a moisture control on the plugs, and prevents them from becomming soggy, and the roots can grow directly into the soil without any transplanting. I usually mix coir and fox farm Ocean forest at about a 1 to 1 ratio and the plants can grow directly into it without any problems. I place them under a humidity dome for about a week to 10 days, misting at least twice a day for a week, then once a day ( lightly misted! As too much misting can cause problems as well. I mist the inside of the dome heavely, but I very lightly mist the plants themselves. I also leave about a half inch of water in the tray, and the soil will wick up the moisture it needs, without drowning the plants.
This works for me.