It seems after every chest/shoulder workout I have to wait a long time to train the other one. Whether I do chest or shoulders, my shoulders stay sore for almost a week. I tried cutting back on sets, doing about 9-12 with shoulders, and 12 for chest...but doesnt seem to help. My shoulders are my weak point, so do I probably need to train chest/shoulders together? I just figured if its my weakest muscle I need to have a day to isolate them. Anyone elses shoulders always sore?