No worries Matt you didn't hurt my feelings....
Thanks for all the help. I guess I didn't explain too well. Not talking about a tonneau cover. I usually see two different types of camper tops/shells.
There are the higher top backs like this one....
And then the ones that are flat from front to back, like this one.....
With the first top I know that most of the time you can stand up on the tailgate and the tailgate step would be perfect. But with the second style top I don't think you would be able to stand up on the tailgate, meaning the step might not be usable.
Stan, good point on a different top required for the step, might have to look into that.