Thanks for the reply.
I actually just went and "reset" all the setlists/patches to blank, only keeping the "Best of HD" and the "FX Heavy" setlist/patches, which I assume were the only 2 factory setlists left on the device, the rest being ones from the previous owner. Also I went through the settings and adjusted things to my liking, so combined with the setlists reset, it pretty much accomplished what I wanted to achieve with doing a re-flash.
I actually just saw this reply after logging in to download the original factory set lists from another thread, just to have them and maybe look through them eventually.
I have been thinking about doing a global reset because I think the global EQ settings were messed with by the last owner and I wanna restore that to default, and because the pedals global min/max settings seems off. Was only hesitant because I didnt know if that would affect the added amps, so its good to know it wont.