The game can be broken down into four areas. 1. The stroke 2. Ball pocketing 3. Cue ball control. 4. Mental attitude
If you feel you are satisfied in any of those areas, then work on a different area. As far as what the pros work on, well, you don't play like they do, so you need to work on more areas than they do. As for me, I need work in all four areas, so I do things (drills) that target each area individually.
I'll also say this- just because a pro doesn't work on something is no reason for me not to work on it. Who knows how much better the pro would actually be if they did work on it? My game started to really improve when I stopped worrying about what someone better than me was and was not doing, quit using them for an easy excuse for me not to do something that wasn't particularly fun for me, but instead took an honest look at MY game, and worked on what I needed to work on. I learned to make it fun, not a chore. And I learned a whole lot in the process.
If you feel you are satisfied in any of those areas, then work on a different area. As far as what the pros work on, well, you don't play like they do, so you need to work on more areas than they do. As for me, I need work in all four areas, so I do things (drills) that target each area individually.
I'll also say this- just because a pro doesn't work on something is no reason for me not to work on it. Who knows how much better the pro would actually be if they did work on it? My game started to really improve when I stopped worrying about what someone better than me was and was not doing, quit using them for an easy excuse for me not to do something that wasn't particularly fun for me, but instead took an honest look at MY game, and worked on what I needed to work on. I learned to make it fun, not a chore. And I learned a whole lot in the process.