Help with size altering adjustment

[TobyFox2002]

I am working on heavily modified size alteration adjustment, and have run into a few issues with how I want to code it. It is based on content from Microsized Adventures.

I am using the default size adjustment as a base with
First/20000 Index: 1

    ~ If we're not enabled, get out now
    doneif (field[pIsOn].value = 0)

    var sizemod as number
    sizemod = field[pAdjust].value

    ~call another procedure to handle the size change
    ~procedure copied from SizeChange, removed gSize change to prevent
    ~weapons/armor from shifting in size.
    call ChgSize2

However, I am running into some issues with the timing of several aspects of what I want to do. First I want to OVERRIDE the use of DEX for Climb and Swim.

I have the code

    ~ If we're not enabled, get out now
    doneif (field[pIsOn].value = 0)

debug "Our size is " & herofield[tSize].value
~ Overrides the normal small or smaller size rules for DEX.
~ A diminished creature is not allowed to use DEX for swim/climb
        if (herofield[tSize].value <= -2) then
          ~ Change the attributes on Climb and Swim
             perform hero.child[skClimb].delete[SkillOver.?]
             perform hero.child[skSwim].delete[SkillOver.?]

          endif

But, I cant get the timing right, I know I'm doing something wrong but I cant find what timing HL is overriding the attribute to reverse it.