Yeap, I call it the "metta-sanna"

. I applied metta until the sensation settles down into an zero aversion state. The idea is to found the positive aspects of the noted phenomena to counterbalance the negative ones. Another tool to slow down the restlessness is to insert some minutes of Shinzen's "gone" noting, that is to note only the vanishings and enjoy the (short) restful state until another phenomena arises.