I find my Discus 2 can be a dog to get the last inch of the wings in on a hot day (common in Arizona), but much, much easier on a cool day. Presumably thermal expansion plays a role?

The spoilers are what usually hang up, so I give the handle a last tweak to clear them before the final push. The manual says to rig the left wing first, but most owners do it the other way round so they can easily access the cockpit. Otherwise, clean, grease and push!

Mike (WA)