A couple of question from a newbie need help with clarifications.

[Anova]

1. You may want to hold off on the hunting log unless you intend to spend the seals now and need them. Those empty slots are intended for future patches when they expand the number of ranks you can earn in the grand company. You are at the highest possible rank.

2. You will not gain any additional benefits from doing any quests or killing monsters at Lv.50. Gil and item gains remain the same. Any xp gain is reduced to 0. Playing at 50 will not reduce from your total rested xp bonus either. If you haven't finished the story quests, do so now. This will let you run endgame dungeons and primal fights, which will net you gear higher than iLv. 50.

3. Chocobos only gain xp from mobs. Grinding them is a difficult undertaking.

4. Endgame dungeons such as Hard modes, CT, Pharos, and Coil are unlocked after you finish the Praetorium story quest. Coil itself has its own story quest that continues only once you have obtained your first relic weapon. Explore the Waking Sands, Revenants Toll, and Aleport after Praetorium to begin the quests to unlock the dungeons/primals.