I have played around with many different angles such as Cheely, Caspian, Harrison, EGW and self made FPS. There is more to it than just changing it out to get it right. It has to work with your load and recoil spring(and MS). Currently run Cheely fps on open guns and caspian on minor SS. The Cheely is very similar to the one you posted. But they are cheap and easy to change out at the range.
https://www.shootersconnectionstore.com/Cheely-Custom-Flat-Top-Firing-Pin-Stop-P3270.aspx