Is there a difference in the transmission distance and directional angle of the optical remote controller (BRS and BRC)?

First of all, it is difficult to compare because the circuits of BRS and BRC are different.
Basically, the specifications and ability of the receiver do not change, but the directional angle is different as following:
BRS (receiver) : vertical direction, full-angle 40 deg

BRC (receiver) : 10 deg upward, 40 deg downward

10 + 40 = 50 deg for full-angle.