I've had a few boxes where I was "skunked" as far as silvers. I have at least found an NIFC in every box so far.... it's enough to keep me going as I kind of enjoy looking while watching TV.
Nice, they stack up one by one. Slow and steady wins the race. Many give up after a box or two, not realizing that with roll hunting, volume is the key. You must sample thou$ands in halves to get an idea of what's out there, and is it worth the time and effort.