That makes sense to lap over top. I was going to check the RV site and refresh my memory but 43.13 is a better source for sure. I did the RV wing set between 2 post standing up and not flat on a table...seems like a better way from an ease of access standpoint. I'm having some issues getting square with no twist. Once I get things right I will put the bottom skin on. I'm using a laser level so it is easy to get it set up but clamping in place is not simple.
I'll follow 43.13 for laps. Dimpling a 48" sheet is a bear.
Average Feb snow is 8.7" in La Nina years and we have 41" so far. Come on Spring!!