the right thing. this makes the work much easier.
as you progress along the side of the cavity a little at a time you will become pretty much absorbed in it. pay no attention to what other people are doing.
you will develop a way of living inside your own head. the time will pass quickly and you will surprise yourself and other people with how much you get done. choose a kind of music that does not irritate you and keep it low.
knowing when to move on is important also. keep a close watch on the surface so you don't do a lot of needless rubbing. don't use too wide a 