Send task vs. send event for automated activity

I have a question related to Service Tasks and Events. I want to represent an automated system task to send a notice...Send Notice.

My dilemma is how to model this. I dont want to create a Send Task and then have a Send Event right after it...therefore duplicating a send to another pool.

Would it be better to create a Service task called Generate notification (since a system will do this) and then a Send Event to throw the process to another pool?

I need this to eventually work in webMethods...

Any thoughts or ideas would be greatly appreciated.

Thanks,

Norm