What I could use is some sort of processor to handle piezo pickups, the POD has a setting for that but it is not very good, anyone have any thoughts on that?
Funny that you should ask! I recently researched this myself and discovered that there aren't too many such devices, possibly because it's not an easy task to make an acoustic's piezo sound good as a direct signal. However, I just purchased a used Yamaha AG Stomp (discontinued), which does a pretty nice job. It has a bunch of mic simulations that really do reduce the piezo mid-range nastiness.
On the pricier side (and if you're willing to purchase a Universal Audio Apollo interface

would be the Sound Machine Wood Works plugin. Based on the samples on their website, it sounds amazing! WAY out of my price range though!