Confusion with Hero tags / fields

[TCArknight]

I am having an issue with a user field not changing bound minimum/maximum. I have:

<!-- User value assigned for the ability -->
<field
id="abiUser"
name="User Value"
type="user"
usedelta="yes"
maxfinal="50">
<!-- Bound the user value to the limits established for the ability -->
<bound phase="Initialize" priority="5500" name="Bound abiUser">
<before name="Calc abiFinal"/><![CDATA[
@minimum = field[abiMinimum].value
@maximum = field[abiMaximum].value - field[abiBonus].value
]]></bound>

<!-- Disc/Dept have a minimum ability value of 0 -->
<eval index="2" phase="Initialize" priority="5000"><![CDATA[

if (hero.tagis[CharType.typShip] = 1) then
field[abiMinimum].value = 0
elseif (hero.tagis[CharType.typShip] = 0) then
field[abiMinimum].value = 1
endif

field[abiMaximum].value = 5
]]></eval>

The CharType tag is set from the configure hero form. The initial CharType is not typShip. This starts the Discipline component minimums (from eval script 2) at 1. If I then do change it to the typShip, the minimum becomes 0, but abiUser remains 1.

Am I missing a timing or trick to have the abiUser recalculate when CharType tag changes? (a change script on the menu_thing component?)

Is there a way to treat a change in this tag as a new portfolio with the initial CharType.typShip tag?

Some other possibility?

Thanks!
TC