Does the Paper tab selection panel appear randomly if individual data in a paper tab is linked via Angular.dart?

Question

The tabbed paper somehow mistakenly calculates the width of the selection bar as 0px, possibly because the data is bound at a later point due to Angular.dart bindings. Is there some kind of event that we can shoot or catch on to allow the polymer to calculate the correct width? here is an example code:

<paper-tabs>
     <paper-tab>{{angularVariable}}</paper-tab>
     <paper-tab ng-repeat="{{anotherAngularVariable in angularList}}">{{anotherAngularVariable}}</paper-tab>
</paper-tabs>