Replying to Backcountry Kickers Around South Lake

I was wondering if anybody has ever hit the BC kickers off of 88 heading from South Lake to Kirkwood? They are about 4-5 miles before Kirkwood right by one of the parking lots that a lot snowmobiles are at. I can see them when I drive by, but they are a ways up the hill. Just wondering if anybody has been up there or knows of any other hits in the area. I wanted to learn some inverted tricks and didn't really want to try these in a park for the first time.