I had changed the software [firmware] version to 7.00 in the hybrid fw. Explore is presently at version 3.00, Edge 1000 is at version 7.00. However those update programs [WU & GE] will read the HWID and allocate firmware according to that so be very careful using them or you'll end up with it back as an Explore again. I know you seem concerned to use RGN_Tool but it's really not as scary as you might think. Perhaps you're not the only one so i'll make a tut when i have a little more time on how to check compatibility of related devices and then make hybrid firmware to safely cross-flash using tools already available here.