Felting question

So I did my first felting. It was that multi colored bag. And now I have an issue. I used the dryer and jeans method. I wetted the whole thing down, squeezed it out and threw it in. Now I have a section on one side that didn't felt like the rest. The other side looks great. And oddly the bottom felted faster than the sides. So do I just thow the whole thing in and hope that it felts evenly? Or do I hold the rest of the bag out of the water while dunking the part that needs felting? Any suggestions???

