ValhallaGH
Explorer
Well, lets do the math real quick.Donovan makes a good point in another thread that the fault may be the Skill Focus feat in general and not just Skill Focus: Use The Force.
Defenses:
10 + Level + Class bonus + Ability bonus. For first level characters this will average 12 + Ability bonus.
By 9th level this will average 21 + Ability bonus.
Skills (trained and focused):
10 + 1/2 Level + Ability bonus + d20 roll. For first level characters this will average 10 + Ability bonus + d20 roll. By 9th level this will average 14 + Ability bonus + d20 roll.
It's entirely possible for a Skill Focus character to have a skill modifier that exceeds the target's relevant defense score, before dice are rolled at low- to mid-levels. For mid- to high-levels, skill users need to roll moderate to well to successfully affect targets. For very high levels (18 to 20), you're looking at needing a 10 to 16 before ability bonuses, depending upon feats and class bonuses.
Obviously, this is back-of-the-envelope examples, but it's a good point to keep in mind when looking at Saga and how it handles skills.
For any skill that goes against defenses (Deception, Persuasion, Use Computers, and Use the Force) Skill Focus is brokenly good before 10th level. After 10th level, it's still extremely powerful, though it slowly slides into the "necessary" category as you reach the end-game levels. Skill Focus never quite becomes necessary for skill reliant characters, but it does get close.
I hope that clarifies it some, as well as illuminating why it is such a commonly cited issue.