Archetype limiting class custom abilities available

[frumple]

I have an archetype that limits which primary custom abilities a class (in this case the Arcanist) can take. I figure I need to modify the class's helper field cCstSpExpr, but I cannot get the timing correct.

Here is the code I have

~ we need to set our scientific exploit selections. We do this
~ by eliminating what we cannot select.

var filter1 as string

filter1 = "!(thingid.cArcBldDev|thingid.cArcFamili|thingid.cArcMetaKn|thingid.cArcMetami|thingid.cArcPotMag|thingid.cArcQuiStu|thingid.cArcSonBla|thingid.cArcGrMeta)"


hero.child[cHelpArc].field[cCstSpExpr].text &= "&" & filter1

I have tried numerous timings but cannot get it to work. :/

Ideas?

 

[Aaron]

The standard timing for that is:

Final 99999999 (that is Eight Nines)

 

[frumple]

Ah. Didn't expect it to be that late!