There is a string that's been running in the General woodworking forum. It is concerned with making 105 pattern siding.
The discussion has been centered around router and shaper bits. Also, the difficulty in running long 1X10's through the machine.
I can make the overlap notch on the backside with my LV skew rabbet planes. I could start the cove shape on the front side, but I'm not sure how to put the rounded cove in the resulting rectangular notch.
How would this crew make that cut?. It would be a monster to make with scratch stock.
I'm not planning on making the siding, just curious if it could be done.