The Raas alert is supposed to occur before touchdown to give time to GA. Did not happen here. Was that due to operator's preference? On reflection although presumably it is possible to bounce 300 tonnes or so if you really try, it must be rare for it to happen. 300 tonnes usually arrives on terra firma so sweetly you dont notice or with such force it rattles your teeth, but always sticks. As SLF these days I stand to be corrected.