Flex container or scrollcontrolbase

Question

I'm looking to build a container that can contain a stack of synchronized time-series data visualizations. This can include line charts, event schedules, and any other similar items. I want the end mxml code to look something like:

<timeCanvas> 
   <lineChart data=foo>
   <lineChart data=bar>
   <userAvailabilityChart data=baz>
</timeCanvas>

Anyway, I'm trying to figure out whether I'm better off extending ScrollControlBase, as the flexlib scheduling does, and perhaps implementing a slew of interfaces, or by extending Container.