Just for clarification jellybean, LDJ's situation is MUCH different than mine. She is feeding over 100 birds which would be enormously daunting to feed 100% ff in my opinion. I only have 4 hens so my 100% ff program suits me and my girls. Whatever works for you and your lifestyle is the right way to go.
Feeding entirely ff does require more attention and we have to get babysitters if we are gone for several days since they do need to be fed., rather than having feed available at all times.
I've got close to 80 and do 100% FF. The only thing I add when it's very cold (which is rare here) is scratch. They free-range 100% of daylight hours and are only cooped at night. Even if I had 200 birds, I'd still do it- I'd just keep adding coolers.