Is dipping/chewing tobacco worse than smoking tobacco? It seems like "chewers" develop cancer in their 40s (babe ruth) where as smokers in their 60s

Both are bad for you. You are right as to when their cancers might show up, but in either case, there's involvement of tongue, mouth, throat or in smoking, the lungs.Also secondary effects can be bladder cancer, other cancers as the toxic substances still need to be cleared from the body.Your best bet is to stop & see how you can replace this habit with a healthy one.Then, you will be going down a healthy path instead.