This is my alt so I do not know if the consume shadows buff that increases stealth detection when you use the void walker spell consume shadows was added with 3.0 or not so sorry if I am wrong. The exploit I found was that when you start mounting up and before you mount use consume shadows. Your void should now go away like blizz intended to do. When you dismount you should have the consume shadows buff that will increase your stealth detection which is nice for when you are leveling or doing dailies. This buff only lasts when the void walker is out, if you change pets or die it will go away.
ss: http://i112.photobucket.com/albums/n...108_133617.jpg
EDIT: ss was taken in combat to show that the void could not be consuming shadows at that time.
If this is a repost sorry, I looked and did not find anything
EDIT 2: blizz fixed this go ahead and delete