brushing

Hello. I own a German Shepherd dog who sheds insane amounts over spring and summer until it starts to get cold again. I was hoping you guys could give me some tips as to how I can cut down on her shedding a little bit? I know brushing helps and I do brush her but the fur is still insane.

I've read some articles saying to go easy on a Lab's coat, for fear of stripping the undercoat. Below are the two brushing tools I use. I brush every two days or so, lightly. Which of these two brushes would you use most, and how often? I'm concerned in particular with the wire brush, even...