They're so much fun. Yes, they're wetter to work with. Just keep a piece of paper towel next to you and if it's too wet, just run it along until you think enough wetness is gone. Don't squeeze it unless you need water.
I have not washed mine with soap and water. I just squeeze water out and run along the paper towel until it runs clear. That's how I do it. Maybe others have their own suggestions. HTH!