The issue is the servo arm follows the shape of a circle. So, you can adjust subtrims to correct for center swash, and you can adjust limits, but, the points between the center and peak will be different for positive and negative if you do this. Since your servo horn is tilted up or down.
It will not fly nearly as precise as a proper mechanical setup.
Yes, it will fly, and the spirit will probably make it fly well, but, not as well as it should be.
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