I always grow my bagseed if its from some dank bud. Along side the seeds that I've ordered for this grow season (Fast and Vast, Fruitylicious, and Northern Lights.. Strawberry Blue and Hawaiian Skunk haze were the freebies) I'm growing a little over a dozen "bagseed" plants that were supposed to be Lemon Haze and Super Silver Haze. So far I've been lucky with the results from the bagseed I've grown and it adds a good bit of weight to the overall harvest.
Good luck!