So I spent most of my time yesterday fiddling around with my O3DSXL and figured out an obscenely easy way to run 4.xsysNAND, 4.xCFW and 9.6emuNAND (for your legit CIA installs) all off of one SD card, to eliminate having to swap SD's. My original goal was to have 4.2U SysNAND, 4.xCFW and 9.6E EmuNAND, but I'm a bit hung up on the actual region changing part at the moment. In any case general overview is as follows: Set up PBT CFW Install your CIAs Format emuNAND using GW launcher Use rxTools to update it to 9.6 Now, to switch between rxTools, CFW and GW launcher, you need the ROP multiloader and the rxTools mSET installer, along with an MSETforBoss.dat (for loading the CFW). Whenever you want to switch what your MSET boots, just install the proper ROP and you're good to go. I'll write out a bit more in-depth later on when I have more time. But I just wanted to let you know that this IS possible without having to rewrite SD card sectors and whatnot.