Chocobo Companions and You: A Guide

[HEC-]

rank 13 requires 2m exp btw and a training gives him ~15.7k exp + ~300k via challenge log

At any level:

- Traning at fully clean ("sparkly") stables always provides exactly 1% of the total XP needed for that level thus exactly 100 Krakka roots are need for one full level (so it seems that you're "wasting" the food and time by training at not fully clean stables).
- Challenge log will give you bonus of 15% (5 + 10) each week of given XP needed for current level (e.g. saving you 15 krakkas per chocobo per week).