The wings are often crisscrossed on older glider trailers in general. And they frequently put the wings in tip first so you have to walk the heaviest part of the wing the longest distance. I think the old style trailers were part of a conspiracy involving osteopaths, orthopedic surgeons and physical therapists to ensure a steady of supply of patients. If you get an older ship (first or early second generation glass) you can count yourself very lucky if you get a trailer that has the fuselage go in nose first, the wings root first, left wing on the left, right wing on the right and you don't have to pull everything out to rig over top of the damn trailer tongue. You're really in clover if your trailer allows you to leave the horizontal stabilizer safely in the trailer until the wings are on!