Quad copter with permanently tiled back propellers

Hi everyone, I am working with a team which is involved in building a quadcopter that has two front propellers pointing straight downwards (like a normal quad-copter), and the two back propellers at a 30 degree angle from frame. This was done to provide some forward thrust and move the drone without having to tilt the frame.

This is not a typical tilt wing aircraft since the back motors are fixed at the 30 angle without any possibility of change in mid air.

I haven’t worked with anything like that before, so I am not entirely sure what adjustments need to be made in set up process in order to ensure smooth operation of the drone. Would be really grateful if someone could point me in the right direction.