I have used pellet raised bass in several scenarios. If you intend to stock them with an existing population of bass, don't expect them to blend. You will still need to feed them. Feeding should be a committment. If you are using them to fill a missing year class, stock lightly, with uniform size fish. If you want to use them to increase catchability of all bass, overcrowd them slightly, but feeding is still a committment.
Fish will respond to instinct and conditioning. With pellet raised bass, conditioning seems to override instinct, because fish farms feed their bass to satiation, every day. No need to forage, and when hatchery bass are overcrowded, "What forage?"

Teach a man to grow fish...
He can teach to catch fish...