Absolutely. That's why I put "stage two" in quotations.
(Just talking at this point, YB.)
That said, a manufacturer's "stage two" style cam will make more power than their mild "stage one" cam and will respond well to head modifications while not requiring them like more aggressive "stage three", "3/4 race", or "full race" cam profiles. (Boy, that was one helluva sentence.
) So, the average consumer that doesn't want to do anything other than a cam swap can be confident that a "stage one" profile will work well in their engine.
When you step up from there you want to start looking at high duration/low lift or high lift/low duration and which specs for the given style would be best for your needs. Typically you want high lift/low duration for forced induction application and high duration/low lift for all-motor applications. With f/i you want the valves to open up really big so the engine can take a deep breath, but high duration would allow that breath the get blown right out of the exhaust ports. With all-motor, it's that long duration that helps suck all of the spent charge out of the cylinder while helping to suck the new charge in at the same time. Then the real fun begins, picking the exact profile. This cam might offer more midrange where this other cam will offer more top-end.
Using my dyno again, the 59300 cam is high lift/low duration and its profile provides a lot of midrange. You can see that I picked up almost 10whp in the midrange from the baseline run to the final tune. Now, something like the Crower Stage 2, which is high duration/low lift, would provide a fatter power curve up top and maybe even a few more peak ponies. I like midrange and it suits the 90mm D16 stroke well, so I went with the 59300. I'm really tempted to see what this cam can pull all-motor, but I got it for the eventual GReddy turbo kit.