Every casual race boat around here (larger than an open dingy or Lightning) has lazy jacks, and seem to not have any performance problems. As @Jackdaw said, if you're REALLY serious (guessing not, if you chose a Catalina 30), you'd have your large crew roll your carbon-fiber sails before storing below. It seems a shame to have anything you have on your boat unavailable to you for casual or single-handed sailing.