There's more than one answer. Usually that's the case with most cannabis questions. I recommend using pellets. I have 100% success rate with this method. It also depends if you're growing autos or photos. If you're growing autos I would sow your seed directly into your final pot(no peat pellet necessary). Just don't drench your grow medium. If you're growing photos, there's a little more forgiveness, they don't get stunted as easily as autos. So you can transplant a little more freely. Some people like to transplant a couple times, it allows you to sprinkle mycorrhizae directly on the roots. The less experience you have, the less I would mess around with transplanting. Make sure you dial back your nutrients by atleast half if not more than the amount the bottle suggests. Even though the plants can take it, the plant doesn't need as much as they tell you. They just want you to keep buying more nutrients and spending your money. Good luck!