Originally Posted by Leisesturm

Very true. I have a lot of respect for the Park Tool website. I only mentioned books because I am 54 y.o. and don't own a smartphone. You might can hold the insights gleaned from a video in your head until the time comes to do the actual wrenching, but some of us need factual reinforcement as we go. A book does that best, I think. But, whatever works.

H