the thing i like about the custom cut turrets, they are simple. you dont have to carry a chart and worry about how many revulutions you'v made or number of clicks, if you want to dial in for a 750 yard shot, turn the knob to 750, your done! and fwiw, these turrets are by no means permenant, have two cut for your differnt bullets, they come off with a simple allen head set screw.