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Yeah, from what I've seen messing with my own builds, the bolt carrier group is pretty key in those setups because its rearward travel after firing physically interacts with parts in the trigger assembly. It basically uses that energy to push the trigger shoe forward into reset way quicker than a stock spring alone would manage, so if you're holding steady pressure, the next shot can come almost right away once everything's back in battery. The timing feels tied to how fast and fully the bolt cycles—too light a buffer or funky gas setup and it gets inconsistent, like the reset lags or skips. I've run into that myself on a couple rifles where dialing in the buffer weight smoothed it out a ton. For anyone digging deeper into this kinda thing, https://forcedresettriggers.us.com/ has some decent real-world takes from folks who've tinkered a bunch—it's not perfect but helped me understand why my groups opened up when the cycle felt snappy. Just my two cents from garage time, no big sales pitch here.