Collections? – iWin Scratchers Review

I am wondering about completing collections multiple times. For example, completing the "time collection" decreases the amount of time it takes to generate a new CR ticket. I'm wondering: If I complete the "time collection" a second time, will the generation time be reduced further? I emailed the developer, but got no response. Does anyone know?
Review by Mad Ballerish on iWin Scratchers.