Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, my biggest tip is to focus on maximizing each character’s strengths. Don’t be afraid to mix and match different paths to create a well-rounded party. For side quests, make sure to complete the monster arena challenges for valuable rewards and tackle the butterfly hunt for some fun mini-games. As for character builds, experiment with different abilities and see what complements your playstyle best. Remember, there’s no one-size-fits-all approach, so don’t be afraid to get creative with your party composition! Happy exploring!