Just make sure you use the factory supplied screws or replacements that are the exact same length if you ever put them into that little recess. Longer screws might go up high enough to make contact with the PCB and might accidentally make contact with a power trace which might fry your power supply. I say this as someone who experienced this firsthand with my Ten2 and a perfect storm of the kickback legs slipping and the amp/cab came down hard on stage and the screw made contact with the power supply board. In my defense I was the second owner and didn't even know those feet were in there (much less with the wrong length screw) until catastrophe struck... all I knew was it quit working on a gig. Rick informed me of this when I sent it to him for repair... sigh...