The one advantage of the less-than-race-ready skis is that by being easier to flex, they require less force to bend into a turn. If you are skiing slowly, say on a very small hill, or with friends or family that ski slowly, or in a crowd, you can whip off short radius turns with less effort. It allows you to feel the ski is reading your mind and turning where you want without much input from you at slower speeds (remembering old Salomon Equipe 10 SC here).
With forces being lower, it's easier to marshal them.
I have a Fischer WC SC in 165 cm. Most of the time it's great at making short turns, but for a small 200 m vertical hill, I would rather ski an RX8. The WC SC handles high-g forces better, has more edge grip, is more stable at speed (vibration-wise), but it gives up something at lower speeds.
I suppose the RX8 is more forgiving of mistakes too, but I wouldn't know much about that; my mistakes are usually of the type that nail me pretty good no matter what I'm skiing