backdoor

Definitely agree.

Been a "bark-side up" man forever. When I was working as a carpenter's helper on my first deck I was taught this. The carpenter I worked with always gave me a reason for doing things his way/the right way (same thing in his mind). He said that if the boards cup badly, the raised centers won't be as much of a trip hazard as raised edges.

But I've left the orthodox religion of his teaching behind over the years. A deck sure looks better with the occasional bark-side-up to hide a wane or such! And that's how customers judge the work- visuals.