Quote:
Originally Posted by Lognic04
I have tried to outline it here - it is an air bubble inbetween the disks. It changes shape though so im not sure if i should worry about this?
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Ok now I understand. Short answer - don't worry about it. Its what you expect at this stage. It's more evidence that the disks do not match each other. The centre is deeper on the mirror than the corresponding hill on the tool. As you make the disks more spherical, you should see a more even distribution of bubbles. Don't get hung up on the bubbles though. Use the pencil test to monitor your progress.
Rod