Connector Strength Property can write but not read

I'm trying to get the current value of a connectors strength, but I'm running into a roadblock somewhere.

I can write to that field by using:

SetValueFloat("Strength", 100f);

But using that same "Strength" field to get the value doesn't seem to work.

I'm guessing it's a similar situation to how some blocks have different fields and terminal properties (Eg: Gravity Generator - Width vs FieldWidth)

I can't find anything in the source/steam guides/wiki. Does anybody know what the proper...

Connector Strength Property can write but not read