At 4th or 7th level, whenever the precocious companion would normally gain the choice of a listed score advancement or a +2 bonus to Dexterity and Constitution, it instead gains a +2 bonus to its Intelligence score and a +4 bonus to +4 its Wisdom and Charisma scores.
Let’s use a Wolf for example
Size Medium; Speed 50 ft.; AC +2 natural armor; Attack bite (1d6 plus trip); Ability Scores Str 13, Dex 15, Con 15, Int 2, Wis 12, Cha 6; Special Qualities low-light vision, scent.
Size Large; AC +2 natural armor; Attack bite (1d8 plus trip); Ability Scores Str +8, Dex –2, Con +4.
At 3rd level, a precocious companion gains twice as many bonus tricks as normal for an animal companion. A hunter’s animal companion can’t use the additional bonus tricks to learn hunter’s tricks. At 15th level, the DC of the Handle Animal check to push a precocious companion to perform an unlearned trick is only 15, instead of 25.
Ok does it mean at third level ONLY they get double the bonus tricks, or do they double the number of bonus tricks from third level on?