Here's a brief explanation of why the RLC-423 would rotate 360° before reach to a preset point. 

Applies to: RLC-423, RLC-423W, RLC-423WS, RLC-423S.

We set presets 1-5 as shown in the picture below, and we name the original position of the camera 0°.

In your mind, the camera should go to Preset 1 from 0° directly and then proceed to preset 2-5 on the way (shown as the arrows below).

patrol_1.png

However, the camera only moves in one direction: clockwise. Thus it will move from 0° to preset 1 in this way as shown below (pay attention to the arrows' direction).

patorl_2.png

Then move from preset 1 to preset 2.

patorl_3.png

Move from preset 2 to preset 3.

patorl_4.png

And then proceed preset 4 & 5.

patrol_5.png

The reason for RLC-423 to rotate 360 before reach to a preset point is that the camera can correct its cruise calculation only when a full rotation is finished. Thus this is not the camera's fault or the firmware's flaw.