Yep, I've been using 1/4" Cargill for about 2 years now, and both the CNBG and I like it a lot. It stores in the summer heat very well, so I usually get enough for 6-7 months at a time. The ingredient numbers/content and price are very similar to Purina.
I still use Purina if I want some different sized food, so I hope they get this all straightened out. I just can't believe the private pond market is so limited that they would drop the the ball, even temporarily, and allow pond owners to look for other sources. IMO, the market is Purina's for the taking, they just need to make the food available in a timely manor.
