The answer to this question is YES! You will save time because Milk bars are specifically designed to allow calves to feed on their own. When you use a milkbar it eliminates the time spent feeding each calf individually from a bottle. You can also be certain that each calf is getting the right amount of nutrition if you purchase a milk bar with individual compartments.
Milkbars also provide a health benefit to your calves. Since the milkbar nipple allows only slow feeds, this will cut down on scours since the milk will enter the abomasum, not the rumen.
It has been shown that calves raised in a group do better than calves in isolation. Milk bars provide a much needed social aspect to help you calves be happy and healthy!