Ive now done this for nearly 1/2 a dozen members including myself. Some people like some dont, your decision.
I take every precaution masking the lights off and with my spraying technique they come out flawless. The cost of materials comes out to just under $45 after tax not including running around buying the material or the masking tape which is rather quite expensive.
All three peices painted for $80, just drop the lights off and leave $50 deposit and the rest when their finished within a few days.
Comparing the stock red (centerpeice) to the fully painted taillight peice. Comes out a really deep cherry red, the paints transparent and has little to none effect on the light when you brake/signal. As soon as the most recent guy whos taillights i painted gets pics of them mounted ill have those posted.