Yeah... I remember being asked about that. Didn't remember that it was you though. Glad it was helpful. To be honest, I wasn't sure I was right because I was at the Sun 'N' Fun fly-in last year watching a guy build ribs for a full-scale and asked him about it. He told me that it was rubbery because I didn't let it dry long enough before sanding. Honestly, though, it seemed like it was on the rubbery side even after a week. Strength was good so I'm not worried about that.