No problem - I have trouble myself keeping the two terms apart
By and large my argument is pretty simple:
Jumping into a drone through a Control Rig allows you to use the limits of the drone (as per my second quote). As you usually have another device where you build your persona (RCC, Deck or Comlink), you'll also slave the drone to it to benefit from the better defense.
That's how far the rules take us
After that it gets murky/GM decision territory, but:
I argue that adding an Attack or Sleaze rating to a drone gives it just another limit that you can use and enhance through your CR in combination with the attributes of your persona device (which is still the one you use to determine defense and ini through data processing).
Kiirnodel argues that you can use all functions of the drone except a modded Attack/Sleaze attribute, because the rules don't explicitly say so.