Are we saying categorically the M3W bevel box does not have a hunting tooth ( or something similar) ratio in its gears ?
If you know the specific number of teeth on CW & P you can check yourself given link I posted. Sorry but forgotten now what mine were.
First came across this engineering solution during a discussion on a Velocette I owned. The gears in drive to magneto were chosen to provide hunting tooth on later models. In this case it was particularly relevant as points of max load on driven device would otherwise relate to the same engaged teeth.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone