Not quite understand.
I play altarian. This is 10% of the experience. Thrice chose lv up potential.
I now have 85% more experience (10% + 15% (P1) + 20% (P2) + 25% (P3))? Or I have a 35% increase (10 +25)?
What happens if you teach skills trainer? Experience will be added (bonus on the skill trainer) only companion? Character or himself, too? And if the team will be more than 3 characters - better to develop the skill trainer, what capacity? How so profitable +15% to all allies (except the coach) if the skill is duplicated.
Do not quite understand skill with a shield. Is a skill board for one character. There are skills to the group. How do they work?