I have the AKE version and it cuts super smooth with 4500rpm on my K945s. The funny thing what i've noticed is I've done a cut what may have been a little too much for this blade (8cm thick european oak) and since then the sound changed a bit and some whiny sound got introduced but man it leave a surface like after sanding on end grain. Its worth every penny in my view. I've got it from a german reseller what was even cheaper then sautershop. The important part is to pick up the right riving knife for it!
