I use a the Range Rover Pro. Has a led light for the pin. Wheel to dial in your yardage. Very accurate. It might take a little getting used to, such as not forgetting to dial in the yardage, opposed to going to a fixed pin. But all in all, it'll make you a better ethical hunter as it eliminates the guessing the yardage (need to range the deer to dial it in), or where the arrow will hit. Because you can dial in say a 43 yd shot and be dead-on, instead of using your pre-set 45 or 40 yd pins, and guessing the yardage and where to aim to compensate. There are other single pin wheel sights which work as well I'm sure. But I happen to have the Range Rover Pro and love it. g/l
Black gold have all the best attributes for me Precise adjustments, tough, bright pins and they are lightweight