I shot for HCA for 7 years and had a couple of excalibers. Theyhave amachined riser, double cam system and are very durable. They are comfortable to shoot and accurate. As usual, you have to make sure that the cams are in time. Not that difficult of a task. With a good string and harness system, they will stay in time, once they are shot in. You should be able to shoot a hunting arrow around 250 - 275 fps.

Good luck