Ledge sends me flying

Hedgemont
Blue Light Beach northside stair set

It's the spot at the top of the map North of Bonski Park under the highway. It has a parking lot connected on the left side and has a long wavy rail on the stair set.

Start at the middle of the parking lot where the center divider is and go east towards the stair set. There are 3 ledges on the left side of the stairs that you can grind and drop from the 1st ledge to the 2nd, to the 3rd and drop down to the ground at the bottom of the stairs.

When I go from the top of the stairs and gap to the 2nd ledge, I'm sent flying towards the water, against the rail, or forward towards the lunch tables that are at the bottom of the stairs at high speed. I even continued to gain speed until crashing into something. It happened randomly when I made contact with the wall of the 1st ledge just before getting to the 2nd ledge; made contact with the ground and the 2nd ledge; or made contact with only the 2nd ledge.    

I'm not sure if the grind matters for this to happen, but I was doing a BS Tailslide and remember it happening when I landed in 5-0, and 50-50. 

I'll try to get video of this and update the post when I do.