That is a hard one to answer. We run Carbide cutters for solid wood. we make alot of curved casing and fluted products. The feed and spindle speed changes with each wood species. I am using Onsrud bits and they have a refference chart in the back of their catalog for speeds. I usually start there or even higher, then you can adust it while it is running with the override.
I can't remember exactly but I think I was cutting cherry at 200-300 inches with spindle speed of 16,000 (1/2\" Compression spiral 2-flute). That was the outline cut. Don't hold me to that I would have to go back and check.
As far as using the shaper cutters on the machine, they do make heavy duty spindles for shaper cutters, but I am not sure how they work.