Any ole seed you pull from a bag of good weed, as long as its an indica predominate strain will be as good as anything you get from a seedbank & thats a fact.
A strain well known for thc levels at 30% can be grown out at thc levels under 10%,one grower can take the same strain & reach the 30% mark while the other hits 10%,most of what makes the buzz from the final product is directly related to the growers skill & plant health,genetics play the smallest role of all, if any role at all.
For instance a seasoned grower like myself could take a random bagseed & get dope that would make your socks drop,an inexperienced grower could take the best genetic sample of the highest thc & cbn producing strain known & end up with weak ass dope,its all in the know how & how each plant lives its life.