RC Airplane- Demonstrating Voltage Drop

I am 100% done with the system I designed to test the voltage drop in a radio-controlled airplane. My ultimate goal is to create brownout conditions to demonstrate how important it is to understand your radio system in the plane.

Warning- This is only to inform. Your mileage may differ. If you don't read this description and listen to the video, you may not understand my intent here.

System 1-
6 Channel System-
RX- Futaba R617FS
Servos- 6 each- Hitec HS 5485 (4.8v-6.0v 72/89)
Battery- 1 each 4 Cell NiMH 2000mAh

System 2-
S.Buss 2 System-
RX- Futaba R7006SB
servo- 2 each- Futaba S3071SB (6.6v-7.4v 138.9/145.99)
servo- 3 each- Hitec HS 5735MG (4.8v-6.0v 222/246)
Battery-
1 each 4 Cell NiMH 2000mAh (RX)
1 each 4 Cell NiMH 2000mAh (Servos)

DROK Adjustable voltage Regulator