I found that matting helped ease the small discrepancies. Now that I’ve retired and have lost 14 feet of office wall, I’m challenged with where to hang them all. One of those things where I really need to paint the wall I want them on, but my house is always on the move, so I need to fix the cracks first...etc, etc..
They are all happily framed, but are still unhappily stacked in the closet. Disgraceful!!!