V-carving is a science as well as an art. The first thing is to make sure your bits are REALLY sharp. Dull bits will burn and create a lot of fuzzies that you will have to clean up by hand. I use a sharp goose-neck scraper to clean up if the cuts aren't clean.
What I've found is that I run the spindle at around 16K rpm and feed at about 1" per second in a climb cut direction and take no more then .08" per pass. Also, on the climb cut, I will leave about .01" of material for a second pass in a conventional direction. What this process does is clean up the fuzzies and makes for a cleaner cut. The feeds and speeds have worked well in bubinga, cherry, maple, oak, hickory, alder, western red cedar, douglas fir, walnut and many other types of woods.
I use Amana tools that have the changeable blades. Initial cost is high but the replacement blades are very reasonably priced. I've found the v-bits made from a cylindrical piece of carbide with the bevels cut in to create the v portion create lots of fuzzies and results in a lot of hand clean up work (not what I bought a CNC for).
Hope this helps.