Radial chip thinning is a beautiful thing:
In fact, you have to crank the feeds way up just to get the same effective chip load as with a more normal depth of cut. Failure to do so can leave you cutting a chipload that is less than the radius of your cutter's edge. Suddenly you're rubbing instead of cutting and your tool life will go down in a hurry.
Figuring all of this out automatically is why I originally created my G-Wizard calculator. In fact, this particular cut would need to run at 86 IPM (if you had that much feed) to restore a normal chip load of 0.0014".
Bumping the SFM can be a little dicier unless you really know exactly what your toolpath is doing by way of cutter engagement. If you get it right, you are flying along the way CAM products like Surfcam do. If you get it wrong, you're burning tools. Takes a lot of spindle rpm to get there though.
Meanwhile, it sure is cool to pile up those chips that fast!
Cheers,
BW