The ISP or filesharing program you use has no bearing on whether or not you have "problems". It has to do with odds and amount/type of activity. Music seems to be less subject to legal action than movies, which as I mentioned earlier is zero tolerance.
As someone said, there is no way that the RIAA or the MPAA can supervise P2P. This is why they both tried and failed to make the filesharing program authors responsible for it's users actions. So then they both tried to stick it to the ISP itself to be accountable for filesharing on their networks, that didn't fly either. So now they must resort to mano y mano to try and control the situation by filing warnings and then extremely expensive lawsuits, in order to try and control the masses through fear. It isn't working.
However, your odds of being singled out again, are just as great as the first time. It is only a very small percentage of users when we look at the whole, that are ever contacted. This is why if you are going to continue on the same path, you should switch ISP's. Another thing to keep in mind is that the person holding the contract with the ISP is the one accountable for any activity on the network, regardless of who is doing the downloading.