Sportmix blue bag year round, and black bag for the winter time. Works just great for me for years. Dogs in great shape , lots of energy, sound and healthy. I feed 17 dogs. Can get 40# bags at tsc and 50# at a local feed store.
i feed the Black Bag year round and yes during the summer my dogs do look a lil fat so i may try your routine, Bit i have a question the Black Bag produces a good solid easy to clean stool, is this also with the Blue Bag?