Hello all, I want to gear my bike down some. The type riding I do keeps me in 1,2 and 3. Would rather run in 2,3and 4. I did the same as I have done years ago by dropping one tooth on the front sprocket, however a friend suggested that raising the rear was safer because dropping the front could do some dammage to the cam? I have never heard this and to me it does not make any sense. What do you guys think?