In reply to matt perks: I'm slightly concerned by your comment that you havent done the route. I climbed Oceanoid last year and it was fairly straight forward to climb around the block. My memory isn't brilliant but I'm sure you could be unsettling a whole load more rock, the leaning top section of that butrees is all detached. I seem to remember my second hammering the loose block and me, sat on the belay, feeling what seemed like most of the crag vibrating. exercise extreme caution or you may get into something you'll regret!