I have shot fixed and pendulum sights in the past.I shot a kellar for a few years and liked the sight.It was very accurate and reliable.I switched back to a fiber optic fixed pin sight a couple of years ago.The speed and flat shooting arrows of todays bows have made the distance judgeing easier.I went to the pendelum to eliminate using multible pins,my last two bow set ups will shoot one pin out to thirty yards.I' ve only shot one deer in 15 years of bow hunting over twenty yards away.So I had no need for the pendelum at that distance.Also the fiber optic was much better for low light.