I wouldn't worry too much. I've been tombstoned 10 times since they 86'd Ban. I've been trying to find the right balance, but I'll have to set up a remote at an IP that isn't on their BOLO list myself.
The problem with using a proxie is their technology follows a new screen name and makes sure it doesn't go all over the map with proxies. The trick to getting a good hold nowadays is to set up a new profile from an IP that isn't banned, and send your first 100 posts from it. If you set up at a new IP, then post from our regular IP, they will snag you and both IP's are out of play.
If you don't follow this path, the MIRT program will ID the banned IP's within the first 100 posts and you could be Barack's Bitch and they still would shitcan ya.