The folks at Mountain Sawyers recommended that one should never use pine or any other resin-containing wood for stickers since they are likely to stain. I recently stickered about 320 BF of Black Cherry and I used 3/4" thick x 1" strips of the same cutting session that I milled from the scraps. After I used all of that wood, I used some offcuts of White Oak and soft Maple for stickers. No Pine.
Rob