There are a couple of things that might be in play here. First is that your front end might not see the drones in the same position as the guy in the Mossy. Second (and I hesitate to share this, but here goes), if you drop gear after a zoom, and then turn sharply, then your drones will (used to at least) stay with you. I think it has something to do with engaging the landing profile, but speed is important. If you are too fast then your gear will break. Third, once the dive is initiated (gear up) the drones will lag in trail and hold altitude slightly above somewhat from the pilots point-of-view. Anyone watching might think he is about to lose his drones, but when he zooms back up it appears he just rejoins, whereas on his front end they only lagged.
This from my observations resulting from many, many attacks on slippery bomber pilots.