Brian,

1. Using a new razor blade - Yes
2. Holding the blade correctly - I assume so
3. Using old or incompatible resins- New resin from Delta
4. Using good batteries and bulb in the UV lamp- Yes
5. Using cure tabs when curing- Tape and tabs, same results
6. Using pressure when appling the cure tab - no, just placing on top
7. Using sufficient resin - yes 7 drops
8. Noticing this after you polish - yes

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