Maybe a silly question... but.
So I made my bootable flash and it worked like a charm and I've been happily using my hacked mini for about a month.
The 8g flash I used was a borrowed one. I figured if I needed to reboot for any reason I would then buy or borrow another 8g and make a bootable the same way I did this time. Sure it would cost me time, but not money since I borrowed the flash.
Is there any reason I should keep/have that original flash? The exact one I used to make my hack? Or am I good with this plan?