So I've been thinking about sending my PS3 to @Devin to get my PS3 downgraded and hacked but I'm a little torn between a few things... 1. I heard the E3 Flasher could dual boot 3.55 CFW and 3.70 OFW, is it possible to dual boot with 4.10 instead? Or is it strictly 3.70? 2. Also about the dual boot, I assume you need to have the E3 Flasher in order to maintain and load the two firmwares, yes? Someone told me you didn't but that doesn't sound right... 3. I've heard you get immediately banned if you use the PSN (SEN, whatever) Is it really an immediate ban? 4. Pros and Cons for having CFW?