1. Run/turn/drill/tap/thread/step/face in one chucking and part it off..all of that will run very true,
2. Put centers in the part and run all and both ends on centers.
3. A part with a hole through, run the hole and features in one chucking, then pull out of chuck to run the other end between centers.
4. Tool bit nick the part To assure the center drill will be at true center of the part (actually the center of the spindle)
5. If you chuck runs out .010 you may need better than .020 turn stock to clean up the full OD.
6. the longer the part ,the more run out you will have.
7. short hold a part in a chuck to center nick or center drill using a shim on one jaw if needed tho better center.
8. bevel the edge of a bore to place on a center.
9. make a centered plug to fit a bore to put on a center.
10. Use a steady if the part is long or tail center would be in the way.
11. Practice using the tail center so it is easy/old hat.
12. use hand wheel numbers to know taper before you turn.
13. when you tickle touch half part clean-up that is the spindles center
14. you can tool bit touch the part to center-adjust a 4 jaw/ often quicker than with an indicator.
15. you can face/bevel edge/ and turn with the same bit to save time with an old style tool post.
16. some times a round hone can make a poor chuck a little better.
17 you can use a center lap with back and forth down pressure about 10* each way to move an off center by a few tenths with center lap held in the tail and other end on a headstock center.
18. some times one T wrench hole will better center a part in a poor chuck.
19. Ok to feel a steady with a .0015 shim around a part. (yes then take it out to run).
20. Grandsons dog ran out. I tracked it in the snow for perhaps 3/4 miles and lost it in all the turns and crossings, gave up to go back to find the dog at the same door he ran out.
21. If you see the General near the front door best to run out the back.
Remember all chucks are a little off but the center line of the spindle is dead on. Something turned in the worse chuck will be to true center of the spindle for all the area worked on..just the stub left in the chuck will be off.