The resistance in the wood work very well. But the connection between the wood and the PCB need to be by outside and now downside. More quick and more easy.
Down side and tunnel
From downside and with tunnel with pin it is a great idea. Without pin that suicide.
Wood path
Wood path is very good to put cable in it from pin to pin. But soldering in it is very bad idea. Because the tin slide on wood and is attack by tin. It make it hard distribute on the surface.
Fail: tunnel soldering
At first I through that I could melt the tin in a tunnel of wood and soldering it from behind.
The problem:
It works but you are never sure that it did and have on way to be sure... (except by testing conductivity when possible)
Any imperfection in the model make a distance between the soldering tunnel and the device
EloiStree
commented
4 years ago 
Resistance inside the wood
The resistance in the wood work very well. But the connection between the wood and the PCB need to be by outside and now downside. More quick and more easy.
Down side and tunnel
From downside and with tunnel with pin it is a great idea. Without pin that suicide.
Wood path
Wood path is very good to put cable in it from pin to pin. But soldering in it is very bad idea. Because the tin slide on wood and is attack by tin. It make it hard distribute on the surface.
Fail: tunnel soldering
At first I through that I could melt the tin in a tunnel of wood and soldering it from behind. The problem: