I only complete around 35% of the hands I recieve from the SB and that is already too loose. 72os luckily isn't one of them .

Don't play any hand from the SB that you wouldn't play from the button unless it's suited and there are a lot of limpers (unraised pre flop of course).

This advice is for limit, if this is NL I would probably only complete if it could make a big hand.