Spells: Benevolence stacking

[insertname]

I searched and didnt find anything on this. I apologize if it W.A.I however heres the situation:

Based on this

The sum of these modifiers is your consider number. What is output by the client is one of nine messages, depending on the consider number (unconfirmed numbers on p99):

Below -801, scowls at you, ready to attack
-800 to -501, views you threateningly
-500 to -101, glowers at you dubiously
-100 to -1, is apprehensive
0 to 99, is indifferent
100 to 499, is amiable
500 to 699, kindly considers you
700 to 1099, views you warmly
1100 and up, you are an ally

All player characters on blue servers have a base consider of 0.

A) as a agnostic HE enchanter with no faction hits to heretic
B) I've done Noclin's pet twice so my can should be higher then base default numerically.
In newbi yard as HE from out side agro range and I am threateningly, after benevolence I am dubious. The interesting part is after I cast illusion Eurdite - no benevolence - I am apprehensive however after casting benevolence with illusion on, it doesn't change. With apprehensive being -100 to -1 you add benevolences mod of +200 and you have amiable. Even if the numbers are slightly off I should at least be indifferent.

That's why I'm saying they are not stacking.

Thank you for your time.