At the mo I work one or two muscles intensely per day each week, my muscles feel very sore the day after a workout.
Next week im changing my routine to a upper lower all over body split, with this new routine I don't think my muscles will be as sore the next day as there get with my current routine. I read that your muscle don't need to be sore in order to grow.
In a strange way I like feeling sore the next day, but is it necessary?