@asvjerry , Black Locust is usually used for decking and fence posts. Carbide will cut it fine but like Teak it has silica in it which dulls carbide blades fast. This is why woodworkers avoid it. We also (except for the Danish) tend to avoid teak. Most of it goes into boats and they are probably using diamond tooling to deal with it.
@buellrider97 , I started out just like you building DynaKits.
It is great to have a group of people who are willing to mix it up and treat this like a real hobby.