I have a 100a main panel that I need to get a 60a subpanel from for garage power, This subpanel is needed for a 220v compressor and (2) curcuits for receptacles. The compressor is currently being ran from a dbl pole 20/20 breaker in the main panel. I would like to remove this 20/20 breaker. install a dbl 60/60 breaker and run it to the garage to a 60a (2-4) space subpanel. Can I use 310.15 and (b) does this look like the best way to do this??? Thanks, JB