Well im still unable to post photos
I've read in different places slightly different info on when to repot. A book 'Orchids care and cultivation' insists that psbulbs and roots coming over the side is a sign of neglect and repotting should be immediate, while other places say only repot in spring. Looking at the latest bulb i would say its building up for new growth so i reckon both instances apply. Just need to find a pot big enough!