I too, use to have a biter,, I was constantly saying "No Biting!!"  and be serious when ya say it  and Eye contact! Sometimes I would sit on my hands to keep him from biting,, his was all in play.  But it worked,, and I had alot of chew toys, sticks, etc,, but now sometimes he'll be all wound up and start and right away " NO BITING" and the hands dissapear,, and he gets the point! 
 
 
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 Rhonda, Bailey, Josie and my angel Bella Rue'
 "Until one has loved an animal, a part of one's soul remains unawakened." 
~Anatole France~