I haven't shot the tru glow pendulum but I did use the Impact Archery one.. it was really nice. And now they made a pendulum that can also be locked down and has an adjustment lever in the rear to make it an adjustable site as well. Wish I would have held off till they came out with it cause i swith to a single adjustable site cause I like to shoot out to about sixty yards and got tired of having to just 'wing it' with the fixed pendulum. With the new Impact you have the best of both worlds.... just another option for ya