Dracomeander said:
You need to review the gestalt rules again. You only get the better value from the combined classes for Hit Die, Base Attack, and Base Saves.
That is indubitably correct.
Therefore, the Base Save tops out at a +12 at 20th level just like a non-gestalt character's saves do.
That is not correct. Do you have multiclass characters' saves top out at +12? (That, also, should be no!)
I believe you misunderstand the rules for it. At each level, you take the BAB, Saves and Skill points for each class you have at that level, and take the best, and add them to what you had before. You know, like how you do it normally anyway. It really helps to think of it as multiclassing on steroids. So, let us consider the Fighter-Monk:
Level 1: Monk-1 gets +0 BAB, +2 Fort, +2 Refl, +2 Will, and 4+Int Skill Points
Level 1: Fighter-1 gets +1 BAB, +2 Fort, +0 Refl, +0 Will, and 2+Int Skill points
Ergo, at Level 1, the Fighter-Monk has BAB +1, Fort +2, Refl +2, Will +2, and 4+Int Skills (x4 for first level).
Level 2: Monk-2 gets +1 BAB, +1 Fort, +1 Refl, +1 Will, and 4+Int Skill Points
Level 2: Fighter-2 gets +1 BAB, +1 Fort, +0 Refl, +0 Will, and 2+Int Skill points
Level 2 Fighter-Monk has BAB +2, Fort +3, Refl +3, Will +3, and 4+Int Skill Points to distribute.
Level 3: Monk-3 gets +1 BAB, +0 Fort, +0 Refl, +0 Will, and 4+Int Skill Points.
Level 3: Fighter-3 gets +1 BAB, +0 Fort, +1 Refl, +1 Will, and 2+Int Skill Points.
Level 3 Fighter-Monk now has BAB +3, Fort +3, Refl +4, Will +4, and another 4+Int skill points to distribute.
Note how having both classes with good Fort saves at the same levels results in no benefit to the character.
Now, let's mix it up a bit, and take Monk and Rogue as our fourth level classes*.
Level 4: Monk-4 gets +1 BAB, +1 Fort, +1 Refl, +1 Will, and 4+Int Skill points.
Level 4: Rogue-1 gets +0 BAB, +0 Fort, +2 Refl, +0 Will, and 8+Int skill points.
The Level 4 character now has BAB +4, Fort +4, Refl +6, Will +5, and now has 8 skill points to distribute.
Questions?
* - Note that there's an annoying hole in the gestalt rules where mixing classes is concerned as regards to XP penalties for multiclassing. There is no current official answer that I've heard of, but given that you're supposed to take two classes at each level, ignoring XP penalties completely isn't a bad way to go.
Brad