Thanks @Garran and @Absol197 for your responses! They are very helpful.
@Absol197 you mentioned Survival of the Fittest, and I had a related question today that I think your detailed write up answered. Specifically a Hermit with Survival of the Fittest, Force Rating 3, and 4 ranks of Survival would still NOT be able to bond a Silhouette 2 animal companion, correct? My reasoning is that since Survival of the Fittest doesn't actually increase your Force Rating, you wouldn't have Force Rating 4 at the time of bonding the animal.