[ChrisV]

I don't like it. A4 is a hand that doesn't really beat anything too well and is in deep trouble to a lot of the hands that call it. I don't think you need to worry about BB's blind not getting raised. Your stack is short enough that your only concern here is to lock up third. This is how you want this hand and the next hand to go:

1. fold fold allin fold
2. fold allin fold fold

Now shorty is in deep trouble with 585 chips and you're surviving with over 700 after you fold your SB next hand. Shorty will be forced allin before you are.