Backside 180 help

Hi everyone I have been trying backside 180s but I have a problem. I can land the trick but without the handle. I keep missing it when I try to pass it to my other hand or it slips out of my hand when I try to keep it in the same hand but land with it behind my back. I keep rotating ways of keeping the handle but I need to know what the easiest way to land it and keep the handle is. Please help!!