Coasters built 3 years ago at the most:
Indiana Beach: Cornball Express
SFGAd (weekday, from my experience): Nitro (the line moves very fast), Medusa, etc.
SFGAm (weekday, from my experiences): Raging Bull (again, the line moves fast)
Hershey Park (weekday, from my experience): Lightning Racer, Great Bear (not 3 years ago, but hey!)
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I'm afraid this gets my lowest rating ever. Seven thumbs up.