I'm going with burbank and at site start stage. At this time end of july will be my slab poured. I envy my neighbours on festival drive to see their builders constructing very fast. I see Simonds poured slab, my neighbour is having his slab poured this week from henley.
What I see as building prices are going up, it is good to block the price with your choice of builder. ideally builders with 1yr period is best , like burbank, carlisle etc