The two-stage triggers on the more recent models are very nice, and worth giving a try IMO. I just put a Timney on a FN, however, and am very impressed with the qualitÿ. One thing about Howas that annoys me just a bit is the chintzy safety button. If the Timney safety is like the one in my FN, it'd almost be worth swapping in just to ease that burning little itch.
The safety button on the new Howas and Vanguards is the cheapest one I have seen yet on a Howa.
