The Storm of Insurrection
Save Bonus Progression
A save bonus grows based on level, and each class offers a set progression for each save. Since I have taken it upon myself to expand the game in small ways, there are four different save progressions: Poor, Average, Good, and Outstanding.
In 3.5 a save progression was tied to class levels. This meant that each progression could stack with itself. For instance, if you were a multiclassing paladin and cleric, with two levels of paladin and wanted to add a level of cleric, you would have a +5 Fortitude base save bonus, but if you were a single-class level 3 paladin, you would have a +3 Fortitude base save bonus. Someone could claim that this disparity in defensive power is offset by various factors (e.g. access to only 1st level spells, lower base attack bonus, and generally lessened offensive power). While these claims might have some merit, I believe that it should not be shrugged off so simply, as for convenience.
Each time you gain a level (regardless of class), you gain progression along a save bonus progression chart. Your total save bonus is the sum of all your progressions, but if you multiclass into two (or more) classes that have the same progress, those classes stack for the purposes of determining your level along that progression. For instance, a multiclass character with 2 levels of ranger, rogue, and monk would have 6 levels of outstanding Reflex saves, so these stack, but then 2 poor and 4 outstanding Fortitude, and 2 poor, 2 average, and 2 outstanding Will saves.
The nature of the progressions depends upon how many levels it takes to advance. Normally, it takes 2 or 3 levels to advance in a save. The outstanding progression advances every 2 levels 3 times and then delays one level on the 4th progression, the good delays on the third progression, and the average delays every other progression. the poor progression always delays (takes 3 levels to advance).