How to eliminate craters at the end of a laser weld?

looking for some advice on eliminating the crater i m getting at the end of a weld this is on the id of a 3 sch 10 316l pipe welded 1gr on a positioner current settings cw power 1100 wobble freq 60 wobble length 2 1 wfs 30 cm min ramp up 100 ramp down 120 power comp 0 i tried increasing the ramp down to 1000 but i m still getting the crater shown in the pictures any recommendations on the best way to eliminate this could this be more of a technique termination issue with how i m ending the weld rather than a settings issue image 59 jpg image 60 jpg