I am working a 4 day split routine. Monday Push or Chest, Shoulders, Triceps heavy weight low reps. Tuesday Pull or Legs, Back, Biceps, heavy weight. Wednesday Cardio. Thursday repeat Push at lower weights higher reps. And Friday repeat Pull at lower weight higher reps. Saturday Cardio. Sunday rest. Is this good for long term or do I need to switch it up to prevent a plateau? Its working great, and I am getting some good strength increases but I have hit a plateau on other plans and dont want that to happen again. Thanks for help.