Re-using Used Lifters on Another Cam

Pishta; Pretty clever using the doorway to show the light coming thru. In your picture of the 4 lifter ends, the left and right lifters show a circular wear ring pattern near the outside of the lifter. I would expect the wear pattern to be a little closer to the middle if the lifters were 'crowned'.

Could you check to see if these 2 lifters had a crown or if they are flat? ---- Thanks ----