> When does your constructor & destructor fire when a dynamic array grows?

What constructor? And why would a Drop implementation be invoked to move something? You've moved it, there's nothing left to drop.

> Did you use the copy-and-swap idiom properly?

I don't believe I'm familiar with this idiom? From some quick googling this seems to be related to panic safety and ensuring that you don't leave things in an invalid state if a panic happens. It doesn't seem to be RAII-specific, and would also apply to a defer mechanism.

> Did you define all the "rule of five" methods?

Rule of five? You mean that your Clone implementation must properly handle resources in accordance with your Drop implementation, right? I'm not sure where the other three come in?