The regular way to hunt is using strong mana to recovery mana points e spirit potions (great or ultimate) just for emergency. In case you have a lot of great in stock like me. In some hunts (like Asura MIrror and prision, f.e.) when your mana points is low you can use great spirit, without use Exura San and Exura Gran San. This way you will heal and recovery your mana points to a good amount.