I've recorded the beam spot center on CW1 at 2W and 35W, and see a shift of the beam in power up of 1.0mm to 1.3mm in the +X direction, and 0.9mm to 1.8mm in the -Z direction.

At 2W, the center of the beam spot has been consistently hovering around 2mm +/-0.5mm in the +X direction (left of center in the image), and within +/-1mm in the Z direction.  The first image shows the beam at 2W, and the beam spot is at 1.8mm +X, 0.4mm +Z.

At 35W, I measured the beam two ways. 

• the second attached image shows the center of the beam spot is 2.8mm +X, and 1.3mm -Z        
  • the beam is fit to the bright outer circle
• the third attached image shows the center of the beam spot is 3.3mm +X, and 2.2mm -Z
  • the beam is fit to the bright center

In All Images:

• the edges of CW1 has been fit to a 25 mm x 25 mm square, the size of CW1
• the green circle shows where the SiC baffle aperture, as it appears in the image
• the magenta circle shows the SiC baffle aperture centered on CW1
• all images are from 5/27/2019