I used the timberline sight too some years back and didn't like it. It was very touchy with the fiberoptic strips, if they got bumped by brush they would curve then you would have to let one side loose to get them to straighten back out. (I hope I am explaining it correctly). As far as shooting goes, I shot well with it. A little more durability and I would have kept it longer, ended up taking the crosshairs out and installing pins in it instead.