Me and my buddy ilya decided to do an out of bounds run off of crest this morning at around 9:30 am. So we met up at the crest gate and made our way up to pioneer ridge. When we got to the top we planned to ride the ridge a little bit the drop in and ride the northwest facing trees. I was first so I dropped in maybe 50 yards from wher we started. We both dropped in at the same spot but when ilya dropped in he remotely triggered a wind slab behind him.