Haha, took someone long enough to figure it out. I know the exact method you are using, I use it all the time known of it for about about 2 months now. I don't think you should be selling it on sythe, I chose not to from the risk of it getting leaked, even though it isn't really patchable but that its just a thought though.
If you want to talk of a way to be able to transfer even more money, you can have it less then 4m with my method, its possible to get the account down to only around 1.6m on it, hit me up on msn or sned me a pm I'm willing to discuss with someone else that actually was smart enough to figure out this simple method =p
There really isn't a limit if your thinking of the same method I am, I transfered about 32m in about an hour, you just have to have the right stuff