OCD huh?Not sure how to help that part but you're gonna have to tolerate the extra inch. 4" in a 5" is the best you can get unless you get really lucky and find 41/2" clay pots. Besides, when the roots do their Houdini bit you can still conceal them in the bigger pot without disturbing them or freaking your 'OCD' self out with the sight of the unruly roots.