Have you seen James Walters brickit video on Templot or Bexhill West ? Yes it looks good for laser cutting although as I am using it for 3D printing using Fusion the process is slightly different, although I can adjust both the mortar depth and width which is really useful.
It always is. Has the camera cruelly picked up the joints between the flint infill and brick and will you be applying 'mortar' to these? Or it is a combination of the trick of the light, shadow and camera? The joint is not that visible to the eye but I can recut the flint infill to be a tighter fit which might improve it as none of the infill is glued in and is just pushed in.