Purpleheart can be a bit tougher than other hardwoods. It’s hard and has a fair amount of resin.
I’d recommend a material test because you don’t want to overpower that nice wood. Check out #6, you’ll get it dialed in perfectly in about 5 mins:
The best part is that once you set up the test you can easily test other materials using the same test job. It’s 5 mins this time and immediate in the future.