I got in. These instructions work for the Verizon version, so others may differ.
1. Power on as normal. You'll see the LG splash screen, followed by the Verizon welcome animation.
2. During the Verizon welcome(or other carrier/welcoming animation?), press and hold POWER+VOLUME DOWN*
3. While holding POWER+VOLUME DOWN, the LG splash screen reappears. Keep holding the buttons until the recovery menu appears. If you let off the buttons too soon, it'll revert to a normal boot, but you can repeat step 2 if needed to get back on track.
4. Profit!
*If step 2 isn't working or you don't have a welcome animation, this works on mine as well and could be an alternate method:
When the LG splash screen appears the first time, press and hold POWER+VOLUME DOWN. Keep holding them until recovery hopefully loads. In my case, doing this would load to the Verizon welcome animation, but then revert to the LG splash screen as per step 2. Then proceed to step 3.
Good luck.