question in relation to airpan modification.

[simmo]

After reading this guide,

http://micra.org.uk/t10-air-pan-modification-to-get-induction-roar.html

I went ahead and did this today, bit of fun and a cool sound! But i was just wondering if there are any downsides to this mod if anyone else has tried it? I'm guessin there cant be any major downsides as it wouldnt be in the guides section, just thought i would check.

thanks

Paul