Flexmark's new and improved Sambar Stalker deer call has opened the world to Sambar calling. It is excellent in calling in deer out of the thick timber and brush. This call just recently got an upgrade in product design with a brand new core that is more durable.
Remember however, calling big game animals can be difficult sometimes, and many will be unresponsive. This is normal for hunters who call in big game. You will see every reaction possible when learning to call big game species. Don't get discouraged, keep trying, and these calls will surely help bring you a successful harvest.