Making your own seeds from a purchased strain is a common next step for hobby growers. Pollinating a female from a pack is fine for personal projects, but some breeders object to people selling or distributing crosses built on their work. I read the notes on https://budweedseeds.com (https://budweedseeds.com) about breeder releases before starting a small pollen chuck at home. Keeping the project private and properly labelled seems the fair approach, both legally and toward the original breeders.