I never had any more problems with burning in Ipe with the end mill bit than I did with a 2 flute carbide cutter. Take in mind also that my bit was in a router table mounted router. I would hold the pieces of Ipe over the spinning bit and plunge the wood down over the bit to make the initial hole. I did use a jointer style push block to push the wood down on the spinning bit. The blocks of wood that I was cutting the slots in were about
3.5" long and 2" wide. There should be no alignment problems but as always you whould make a test cut in scrap for insurance.Again, test for best performance but I ran mine wide open well over 20,000 rpm.
Look here for these bits and also keep in mind that like most solid carbide spiral bits these end mill bits shanks are the same size as the cutting diameter. You may need an collet adapter for the bit to chuck properly. Still with that in mind I found this to be a far cheaper route to take.