My EDCs generally top off at 5.5" and they are usually in the cross draw position although I can say that i will NEVER use any of the squared off, clip style belt locks on a sheath again (not to pick on any company directly). They cut into your side when sitting or squatting.
My cross draws all have a heavy nylon or sometimes poly 2" wide strapping around them attached with rivets to the sheath, wrapped around the back and around the belt, back across the front and they close via 2 heavy duty snaps.
Very comfy and never cuts in.