does anyone know if the over-head storage racks (in standard class) are big enough to fit small suitcases? the ones that are roughly 30 cm (W) x 50cm (L) x 80cm (H), if you get what I mean i dont like the idea of putting my suitcase in the carriage storage areas where i cant keep my eye on it, but i was wondering if that was the only option i have :/