Here's the 300 foot report. Nolan can look away now...Or stay and make fun. Meh.
I took out a 169 gram Proton Inertia against a 165 Neutron for a few tosses tonight. The Neutron has a small amount of wear to it, but nothing I would consider beat in.
Both flip up to flat with ease when thrown with some hyzer. This is awesome, because I was expecting the Proton to be much more difficult to flip since it is in the more stable plastic.
In fact, both discs behave similarly in the high speed portion of the flight. For the most part they flip up, lock on to straight and cruise.
Where I found the two to be marginally different was in the low speed portion of the flight.
On some throws, the Neutron will get a subtle late turn, taking it off line a little. On others, it just goes super straight and has a baby fade. As a result, I found it longer than the Proton.
The Proton, meanwhile, begins fading a bit earlier than the Neutron, which means it ends up a bit shorter and acts slightly more overstable than the Neutron. As a result, I think it will handle the wind a little better than the Neutron.
On the whole, at my power, the two are different enough to warrant bagging both, but I am not sure the Proton is overstable enough to take up the coveted slot that people want to fill between the Tesla and Inertia. Maybe people with better form will be able to see some more stability out of it than I will. I'll lean on the Proton in wind more and the Neutron when I have a little more room for the turn or need less of a fade.
One final note: This batch of Proton feels amazeballs. I like it better than Neutron. It is grippy without being too supple, and the color pops. Might need to find a sparkle.