420 size FPV Helicopter Pre-Maiden concerns

Hello,
My first ArduPilot helicopter build is coming to an end, but Im concerned about a few things regarding the build. As visible in the photos I have mounted the RC antennas as well as the FPV video antenna for optimal signal. What I dont know though is if this is a terrible idea that will vibrate and mess with the FC way to much. Another result of all this weight on the tail is that the heli is tail heavy and requires about 250-300 grams of added weight on top of the battery for it to balance around the main shaft.
Any input would be much appreciated.
/Oliver


If the tail is too heavy, the inertia in the pitch direction will increase. For the pitch direction, it is easy to produce a swing. Moreover, this swing may not be completely suppressed by the adjustment of the PID!

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