OK so the day wen well. I found the directions for the Blumotion drawer slides, despite the blue can fairy’s.I thought i would post the results. This is a video but it is the first time I have tried to post one so maybe it will work. I guess not but anyway the drawer closes just like the video on the rockler website.
and here are some close ups of the dovetails. They need some work, i need to use backer boards to prevent tear-out but the fit was very nice.