I don't know about royal queen, but I've grown some white label CBD purple from north atlantic that was pretty good, it's a 1:20 ratio. CBD Purple 1:20 Auto » Seeds (northatlanticseed.com)
20% ??? A seed classified as "hemp"/cbd only must have less than 0.3 thc. I was just given a promo og kush fem'd seed by royal queen. Someone may want that, I only grow "high octane". It does not say whether they are photo's or auto's tho.