It depends on how much energy you have each day. If increasing your vertical is your #1 priority, then some added plyometrics a few days a week won't hurt. I've never been a huge fan of AA3 just because the massive amount of volume towards the end would seem to negate any realy power training. The WOD does feature a lot of lower-body plyo, but increasing jumping power isn't the main goal, so it will come slower (since it will stay in par with all other aspects o fitness). I think that you could easily get away with adding an abreviated AA3 program 3 days a week, doing it in the evening and the WOD in the morning (or vice versa).  If you get into it and feel like you could be doing a lot more, bump up the volume or the intensity a bit. On the other hand, if you start to feel really beat up, cut it back a notch and get more rest.

Let me know how it turns out!

AA3 has been rumoured to have very, very bad effects on your knees.

It may look like its helping at first, but 10 years down the line, who knows.

I was going to start AA2 and AA3, but when i was doing some of the excercises, I noticed a painful cracking in my knees, so I instantly stopped.

It was only a few months after that then I heard that it may cause problems with your knees, so a little light went off in my head that told me 'Ah, so I was right!'

My advice; don't dont Are Alert.

(Just incase you want to know, my knees are fine now, i found some very good light excersises that have reduced the cracking considerably. Funily enough, my knees only got to that state from doing too many big jumps, into landing or badly excecuted rolls, a lesson about rolling I learned the hard way.)

Yeah, it might work for some people, but its gotten itself a very bad reputation from others.