Using Laze at this point in your proposed rotation would do practically nothing. You know it only works on Snipe, right? By the time you get to the Snipe in your rotation, Laze would have expired.
Actually, no. That's 2.5 seconds of energy recovery time that you are wasting. Use some other opener (such as Laze->Snipe), THEN Ambush, so you can be recoverying energy during the long 2.5s Ambush channel. Besides, you might have earned a 1.5s Ambush if you got good rolls on your openers...