thanks for the push PinMonk , the shapeways listing has been updated and I thought I showed it on one of the threads but didn't, my apologies
photo 1 - shows the difference from the side between the stern bracket and the new angled Swinks bracket on the left
IMG_3532 (resized).JPG
photo 2 - shows the difference from above between the stern bracket and the new angled Swinks bracket on the right - the slot is moved 2mm closer to the corner which effectively raises the target
IMG_3533 (resized).jpg
photo 3 - shows the 2 brackets to be swapped out in which the light board has to be loosened to remove one for swapping
IMG_3530 (resized).JPG
photo 4 - shows the Stern bracket before swapping the base bracket
IMG_1210 (resized).JPG
photo 5 - remove the bolts while keeping the parts of the target together and then assemble the new Swinks bracket like the original
IMG_1211 (resized).JPG
photo 6 - this shows the ball next to the target rivet with Stern's base bracket
IMG_3521 (resized).jpg
photo 7 - this shows the ball next to the target rivet with the new Swinks bracket
IMG_3538 (resized).JPG
photo 8 - this shows the comparison between the 2 targets with the height difference - left is original and sitting lower and right higher due to the drop of 2mm in the slot on the swinks bracket.
IMG_3535 (resized).jpg
Once finished both targets they will both sit higher.
Note: the brackets now on sale do not have the web in the corner as this was un-necessary in a casting so photos 1 & 2 are of v1, v2 are the ones now available.
I hope that helps