The bit that I have is basically identical to the one you linked. My spindle is the Makita RT0700CX http://www.makita.com.au/products/power-tools/planers-trimmers-a-routers/trimmers/rt0700cx-roumer-635mm On paper it seems a rough match to the dewalt item the US guys are using.
I was thinking of starting with a couple of test passes @ .5mm (on scrap mdf) at approx 20000rpm, with a conservative feed rate, then try speeding up the feed with each pass to see where I can get to?
My spill board is rather large? (600mmx900mm) so the faster the speed the better I guess.