@bpugh Ah, yes. I misread your previous post and had the 5V IN pins in mind. I bet higher gauge wires from 5V OUT to the Raspberry 5V IN and GND will do the trick.

@IowaBrewer I know its a bit late but i had these issues with my old pi2 it was the cheap nasty usb cable i was using. I bought a decent one and my power supply's worked well. The same thing happens with the dirt cheap hdmi cables as well sometimes.

The power switch on the ControlBlock lead to a small voltage-drop at the switching component (as does every electronically component). From other projects I know that especially additional USB devices can be problematic. I guess that when you disconnect, one or both USB devices (SSD, converter) the under voltage disappears. Alternatively, you could get an active USB hub that powers the additional USB devices and keep the connection between the RPi and the USB devices.

@Efriim
Just made a small hole to connect the power by itself works perfect
thanks anyway :)