After using it for a year, my Fission Volt finally had the fade beaten out of it. I picked up a Plasma one yesterday, and it's more stable than the Fission one ever was (which is a good thing). Are Plasmas normally overstable? How long do they hold their stability?
Depends on wt and flatness. Most very flat topped volts will stay slightly OS for quite a while regardless of plastic. I have some oldies that still fade.