Replying to DINs on Marker Squire/all royal family bindings

End of last season I got volkl revolt 86's with marker squire 11's. Shop set them to din 5 when I got them and that's been fine so far. I've had a few spills that im glad to have my toepiece come undone on but the other day I tried to do as big of a nollie as I could and my right ski flew off and ladnded on my face. I am 130lbs and mainly ski park. what din should I really have? I've thought about leaving toepiece on 5 and changing the heelpiece to 5.5/6?