I couldn't get Syruz's scripts to work, I haven't used the one in the OP either however I have been using a "lag switch" app that was available for another game and it's been working a charm since release, no ban yet. It's a generic lag switcher like the OP is proposing.
However I do think BE can still ban you for it if they wanted, CE is generic tool for memory reading and you'll get banned for it. I wonder if you'll get banned for Wireshark too.