I'll take a stab at this one:
I don't see a good way to break open the 3/12 if you take solids, so stripes it is for me.
I go for the break out right away, shot the 9 and slide over for the breakout. If you hit it high, you have the ball by the side. If you hit it low, you have the 10. You just want to nudge the breakout, don't slam it. Then you are off to the races.