Hi
When converting a plane from standard (single) prop nose ring configuration to a Contra nose ring setup, the general advice is to align the Contra for zero deg right thrust and maintain the existing downthrust angle

Is there a jig or easy way to set the motor to zero thrust when installing the Contra/mount?

Ive seen conversions where the nose ring is cutoff to achieve zero degrees and others where a shim is built and attached to achieve zero degrees

Any advice would be appreciated (planning a new build in an airframe designed for single prop but would like to try new Contra)

thanks