I always thought the transfer works like this. You get the signal on your ear so you know that it's time. Then you have some time where you can still move (to get your stuff), before you freeze for transfer.
But maybe it doesn'T work that way all the time. Or Oku just screwed up at certain times
"For Feanor was made the mightiest in all parts of body and mind, in valour, in endurance, in beauty, in understanding, in skill, in strength and subtlety alike, of all the Children of Illuvatar, and a bright flame was in him"