In a nutshell, Stability tightens the bolt spread on a fusion, while Range makes them travel faster. Tighter spread means longer range before they spread beyond OHK range. Faster bolts means they travel farther before they spread, increasing the OHK range. Roll number 1 enhances neither of these stats, accelerated coils lowers the impact, thus reducing the OHK range, and rangefinder is generally best paired with another range perk, to allow the additional range to begin taking effect 10-20% further out. Replenish is a solid perk in the current special economy, if not a top-tier one; it's really nice, but you only get to use it 2-4 times a game, unless its mayhem. And then why don't you have special anyways? So in short, the reasoning is: no boosts to the bolt pattern, no boosts to the bolt speed, Accelerated Coils lowers the OHK range, and replenish is not a top-tier perk. Plus not having Hot Swap (which I'm not a personal fan of) doesn't offer that tight bolt pattern on a panic shot. I'd call it niche, but not competitive with other well-rolled specials. [spoiler]This is just my opinion and analysis, if you love it, destroy with it.[/spoiler]

I believe Haunter chose Roll 1 in his PVP recommendations.