I don't use peer protection tools really.
1) I don't really really think a program can stop the government from getting what they want. I mean, it's the government. Vast resources, etc.
2) Really does slow you down.
My friend hasn't got a C&D in the years he's been a pirate. He's 21 and he been on the computer since he was 12. I don't know if it was his luck, but I think they mostly target the big fish. And so keeping a low profile will help I believe. Although I upload and download so I have reason to worry regardless...
@Terumi: Torrent are better if their are a lot of seeders.