My opaque regular Ion feels very similar to my Neutron Anodes. They don't feel exactly like one another, but they feel closer to me than current regular proton versus Neutron.
Discspeed, I tried out the last Soft Proton Anode I used for a dedicated putter for a few rounds but ended up switching back to my yellow Neutron. They just feel so smooth and consistent coming out of my hand on a putt, but giving the softs another go made me realize how much I like driving them. Funny how we roll the opposite with our Anodes. Wonder what we'll each do if they put out S Neutron Anodes?