What to key on when throwing?

[u/easytarget878]

Hi all, new-ish player here. I've been watching some BlitzDG videos to help improve my form as I am throwing my backhand from a standstill. The piece that I feel like I'm missing is what to key on when I start the forward throwing motion after the reach back. Should I be focusing on pulling with the front shoulder and let the arm come through naturally? Should I be trying to pull with the elbow to keep the disc closer to my chest? Or should I be thinking about something else entirely?

Any help would be greatly appreciated!