1. http://www.db.pandawow.me?spell=5487/bear-form#changelog
2/3. So from doing math with and without heart of the wild on i found out that you indeed lose about 5% while you are in bear. My base health with heart of the wild is 662k and when i switch to bear my health gos to 905k when we do the math 662,000 x 1.40= 926,800 (as we get 40% more stam in bear is why its by 1.40) That is a 20k lose in Stam.
Without heart of the wild i get 633k and when i switch to bear i get 862k
633,000 x 1.40 = 886200.
It would also seem that http://www.db.pandawow.me?spell=108294#changelog is also bugged as its meant to get 6% more stam but it gives less that what it should be giving.
I get 633k without heart and with it i get 662k This is what it should be giving.
663,000 x 1.06 = 670980(Heart of the wild gives 6% stam)
here are two pictures showing my health with and without heart of the wild in both bear and normal mode
[ATTACH=CONFIG]63096[/ATTACH][ATTACH=CONFIG]63097[/ATTACH]
http://imgur.com/pTTgnlY http://imgur.com/WuwzQbm
Edited: Pictures looked bad so here is a Imgur link to see them better
4. Tested on 13/11/14 at 8PM
5. 100x
6. 9/10 As a guardians main attack is from bear hug which is based off their health