Of course, I have a mixed flock, and prefer to feed All Flock for that reason, so I'm buying whichever form the local TSC has in stock. Nutrena has the pellet, my preference, though its more expensive (40# bag v 50#). Some other brand at the same price point is the crumble, in the larger bag.
I like Nutreana All Flock too, TSC has it on sale right now, but Purina crumbles all flock is still cheaper per #. If you sign up for Nutrena's newsletter they send out a $2 off coupon every month, that is how I get the price down.

My TSC gives a 15% discount on broken bags, too, though last time I misunderstood the clerk ( between the mask and the plexiglass between us, and I think my hearing is getting worse anyways), he said he'd give me 3% off one busted one ("Is that ok?"). I convinced myself I'd misheard him, because I had two busted bags, "3%? He MUST have said 30% off because 30% off one bag is essentially 15% off two..." I'm not so good at asking for clarification sometimes. The only reason I picked them up was because last time I was told they do 15% off. I'm kicking myself, and I'll for sure make sure next time it is15%.
One thing I never really figured out is, why do they say don't feed chickens a lot of corn, and one of the main things in the manufactured foods is corn? Is it different because it is ground up with other stuff?