After reading the thread about ppl's corners melting after rewiring it i have a better solution, Im not sure if this has been post in the past. But...

I was able to get my corners brighter by by filing the top nub on the bulb and and just switch the way you normally put the 1157 bulbs in. It works great for me.
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Hope it helps

 

I've had mine like this for years now and it works fine, no melting