Sick of loose axles?

[eetoi]

Hey everyone, I have had my dual-celled bit for a while (believe me, you need to dual cell your bit, it is too much fun) and whenever I change my gear ratios, the axle holder gets looser and looser. I got so frustrated since it kept falling out, I thought about it for a while, and here's what I did:

I got my hot soldering iron (on 20 watts), and poked some holes to the left and to the right of the axle hole (actually a little lower, so it held the axle in place, not binded it) so it pushed some plastic outwards, (on the gear side, that was the only side I had problem with), then I let it cool, and.... It stayed! Has anyone else tried this? Do I sound stupid? Was this a wasted space of the forum? It worked for me...