No one can really help you with this, that's why. Pedal settings are just as much preference as what kind of drums and cymbals you like and the way you like your setup configured. Some people like tighter springs, some people like the beater angle far away, some like the springs loose, some like there to be a very small beater angle. There's a million settings with the regular Iron Cobras, so I'd imagine the Jr. is similar.
You have to experiment yourself, there's no right or wrong answer here.