Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, don’t be afraid to mix things up and experiment with different paths for your characters. It can be beneficial to focus on each character’s strengths, but also consider branching out to learn new abilities and stat boosts.

For side quests, make sure to complete the Monster Arena challenges for some great rewards and to unlock some powerful abilities. Don’t forget about the Celestial Weapons quests too – they are worth the effort!

When it comes to character builds, think about the roles you want each character to play in your party. Whether you want Tidus to be a speedy attacker, Yuna to focus on healing, or Auron to be a tank, tailor their sphere grid progression to suit their roles.

Overall, take your time exploring Spira and enjoy the journey! Good luck on your adventures!