From what I've seen, Mavrik, apps can't be easily moved to the external SD card. There's no app for that. App 2 SD Pro just moves them into internal storage. I'd like someone to prove me wrong, but I've seen nothing.
A few months ago, I was running out of internal storage so a moved some apps manually. I plugged my phone into my computer and did some dragging and dropping. The apps still worked, but after a short amount of time my Razr started randomly rebooting. I couldn't find a fix after a couple of weeks so I did a factory reset and started over. I haven't had a problem since the factory reset so I won't be doing that again!
I will, however, try moving ONE app to the external SD card using Astro File Manager. I'll wait a week and let you know what happens. I'm not rooted and as far as I know these phones don't spontaneously combust, so I'm not too worried about consequences.