Positioning of the antennas on a light multirotor


I have questions about the positioning of the antennas on my device.
I understood that they had to be installed at 15 ° as explained in the user manual and that is what I did.


My problem is that my multirotor weighs a little less than 2 kgs and after flight tests, the antennas act as rudders and disturb the device from a certain speed and when there is wind.

I did tests with the antennas installed horizontally on the arms of the multirotor which are made of aluminum and I obtained a radio range greater than 1 km, which is suitable for me and the drone flies correctly.

What do you think of my installation with horizontal positioning of the antennas, are there any risks of disturbing the electronics of the flight controller?

Do you plan to offer smaller antennas in the future?