I have a Rifle Basix in my Stevens 200 in .243 Win. It is quite nice, and my son has it adjusted now to around 3 lbs with zero creep. Very nice, but probably not quite as nice as the Timney in my Remington 700 SPS Varmint, or the Timney in my Weatherby Vanguard Varmint special. But then, they were more expensive than the Rifle Basix. Either would be a great addition to the Stevens 200. You also might want to to consider a Hogue recoil pad for your Stevens as well. Adds a little pull (my sons and I are all over 6' tall) and while the .243 isn't a hard kicker, it makes it real pleasant off the bench. It fit the factory stock perfectly.