Removing cusp/crease when using array, mirror and subsurface modifier Below image shows the shape I'm trying to make seamless, I have mirrored it once along the highlighted edge and ensured the stack is in order to avoid a crease.



However in the below image, after I've made an array of the shape I'm getting a crease on the array seams. Is there a way to remove/blend this crease as well as in the previous mirror?
Stack order:
Mirror
Array (With Merge option ON)
Subsurf