So, there are a few examples, within the rules, of how this might occur:
- The Overwhelm Emotions talent from Force Sensitive Exile, and a Control Upgrade for Influence both add you Force Rating to Charm, Coercion, and Deception checks
- Some uses of the Force (such as another Control Upgrade to Influence) have you roll a Discipline check along with your Force power activation check, while the Invigorate talent from Force Sensitive Emergent adds your Force Rating to Discipline checks
What happens? Do you get to add your Force Rating twice on Charm, Coercion, and Deception checks if you have both the talent and power upgrade? Or does having one make the other useless (and the Influence version appears to be much better than the talent version)?
How about for Discipline? Does using Discipline while activating a power preclude your being able to use the Force to improve your Discipline? In this case, at least, one doesn't render the other completely ineffectual, but the talent is certainly not very effective if it doesn't work alongside Force power activations.