Hi, I'm in v4.0 and trying a post design for a sign mounted back to back, 1275 x 1220mm. I recall in previous versions, that adding a sign to the back of another made very little difference to the calcs in terms of capacity. Now I'm finding that deflection, bending and destabilising are all doubled, except the overall wind surface area hasn't. What's going on here? The results here are based on a 168mm dia jerol post
