I read an article one time that attributed a lot of SOOS issues to some form of pedicle damage. However, in some areas that's way too many deer with SOOS for them to have all injured/bumped there heads. Also, I have no long term data to back it up but it sometimes seems that SOOS bucks have a hard time recovering from this pedicle damage (multiple years still a SOOS). I'm sure there are some pedicle damaged deer, but in some areas it just leaves you wondering.