How should a Summoner Synthesist calculate his saving throws? i.e. at level 5 the Eidolon has strong saves Fort +4 Refl +4 and weak save Will +1, while Summoner has Fort +1 Refl +1 and Will +4, Additionally, at level 2 Shielded Meld special ability grants +2 to all saves. Therefore we have been adding all since they are a "fused creature." i.e. Fort (+4, +1, +2) = +7, Refl (+4, +1, +2) = +7, Will (+1, +4, +2) = +7
The synthesist uses the eidolon’s base attack bonus, and gains the eidolon’s armor and natural armor bonuses and modifiers to ability scores.
RAW never specifically addresses saves - although we assumed that eidolon's weak saves were weak because summoner's were strong and visa versa.
However, it occurs to me that these may not stack just like resistance spell and a cloak of resistance don't stack. Should we just be using the eidolon's saving throws for the abilities CON, DEX, since we are using those modifiers?? i.e. +6, +6, AND the summoner's WIS +6
OR use the which ever is highest bonus rule such as with multiple enhancement bonuses - take the higher one at level 5 also +6, +6, +6?