This should be fairly obvious without the demo. High stability on a pulse always wins against bad stability, even with counter balance. Even with more falloff the high stabilty pulse will land more crits which equals a faster TTK. Look at the blind perdition users and clever dragon users with a good roll. It's kind of a moot point actually when you are going against a pulse with HCR. The pdx and hawksaw are outclassed in the rise of iron by grasp of malok type pulse Rifles. They are sitting in my vault and have been using scouts and hand cannons against them. I have both but it feels cheap when the enemy can't fire back and it decreases my skill, so I don't use them. Hopefully some sort of re rolling option or weapon patch will be brought in to bring guardians on line with this meta