Certainly, bagseed will work for you, if it is still viable you can grow some nice plants. Shit, up until the mid 90's, that's all anyone I know ever grew. Cause that's all we had.
All new growers should use bagseed, or any pot seeds that came from a good bag. That pot was grown out and let to go to seed, and the parentage of that seed is unknown. You'll have to grow it out, and test, test, test. It's a dirty job, but somebody's got to do it!
You might end up with a Cannabis Cup winner!