Interesting Steve, i use the alu-power alot also, ive noticed that when i use them to mill say a pocket the bottom face is never super clean, it alway leave swirl marks but when do a finishing pass of a profile on some 12mm alloy DOC 0.1mm spindle at 12000 rpm feed at 600mm/min i get a mirror finish. im also going to try some k2's seeing as they are on offer at the mo.

On your video have you limited you coolant flow or is that what the pump flows normally?