Originally Posted by blacksaber

Once you clear out all normal SR cards, and YOU DO NOT HIT RESET, the only SR you will be able to obtain will be the event SR.

And as long as you never hit the reset button, this state will carry over between different events and event phases: your "normal" SR count will stay zero, while Event SR cards get a resupply when new cards appear. At least, that is how things currently work. So, never, ever, press that button unless you get bugged and it doesn't list the Event SR cards while you still have to get them.