DTech,
Bill Wylde, Al Turner and others used to rework the GI trigger design when there was nothing else. Thankfully we've progressed beyond that.
I'd bet that for some, Jewell is a quantum leap in feel from the GI triggers that they're coming off of. Like I said, I'm a trigger freak, and I like crispy and consistent. Where it matters the most is shooting Standing where you're timing a wobble. Off a bench or other supported position, I'd make do with anything resembling the break of a stale pretzel. When Holliger started offering his "tuned" RRA triggers there was a rash of used Jewells hitting the market. With the introduction of the Geissele, there are again more used Jewells being offered up on the Highpower boards.
To be fair, I've played with some Jewells that were just fine. But I've felt that for $180 bucks, you shouldn't have to be playing an odds game.
