Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, it’s important to focus on each character’s strengths. Don’t be afraid to mix and match different paths to create a well-rounded team. For side quests, make sure to complete the Monster Arena challenges for some great rewards and tough battles. Also, don’t forget about the legendary weapons and secret aeons! As for character builds, experiment with different abilities and stats to suit your playstyle. Whether you prefer magic users or physical attackers, there’s a path for everyone on the sphere grid. Happy exploring!