I opened them with the Thin Cut EZ Lock Disc, its pretty simple as long as you take your time to make a decent cut without burning through the plastic or else it goos up. I'm passing the sander tip on all the edges to make sure there is no garbage between the gaps. I'm not too worried about sealing them back up, pretty straightforward just have to make sure I let it cure properly.

Below is another picture of the entire assembly with Stealth Bulb and then a picture of the wrapped reflector with the cutout deflector.

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