Not very attractive; it will reduce airflow.
While that may be true, it's certainly a safer option over the dremel. BTW, who cares how it looks? It's inside the chamber. Here's the original post for those interested...
Greeting to all,
Today, I had modded air channels in my beloved Magma 1:1 Clone from fasttech.
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I found a 12G (2.0mm) piercing needle on eBay and sawed off a tube(s) by using triangular File tool. It was easy and now I'm enjoying one of the best drippers without any leaks
http://www.e-cigarette-forum.com/fo...ms/594806-magma-rda-lifting-air-channels.html