Or,
3b covers 3b, pitcher takes 3b line, 1b takes 1b line, ss at 2b, and 2b covers 1b.
I like this one best but I also shake em up.
Bad thing about other play is if you have a decent runner on 2b he can steal third. ss covering 3b on a steal is a very difficult play. If I know 3b is charging and charging hard, I'll call fake bunt and steal. I usually do this after a batter has shown bunt a couple of times and taken a ball or fouled off a pitch. If the 3b keeps charging, I like to steal. Takes a good runner. Very difficult for the ss to get there AND get into position to receive the throw and make the tag. My key when I decide what to do is does the ss cheat toward third. He has to to make this play. That is what I look at on the first two bunt attempts. If he's lazy, we're stealing.