Has anybody used one of these?

[Texas43]

Speedlock Remington 700 SA Firing Pin and Spring | Red Hawk Rifles

Has anyone ever used one of these, if so did you notice any difference?

 

[3one5]

Interesting. I'm curious myself.

 

[Texas43]

I guess nobody has used one

 

[Bill Larson]

that`s a David Tubb invention to cut down on lock time......I`ve used one and also my brother......shines mainly in offhand shooting....I do prefer the all titanium pin over this.....
Will you notice any difference.....????... a lot of shooting/competeing is mental thing.....if you think it gives you better performance,you`ll probably shoot better....