The RC4 test has produced the desired results, and seems stable enough for general usage. Now, when you use the polysolve.com proxy, you have an option as to wether you want to rc4 encode your urls, or use the more standard rot13/hex encoding. This should help get around some filters that may filter against rot13 encoded text. In the near future, all freeproxies.org proxies will support RC4 encoding as an option.