I was messing around on Amazon today and stumbled across a brand new Petra album, Back to the Rock. The samples sounded pretty good to me and became an impulse purchase. I liked some of the earlier Petra stuff but not enough to buy an album but I can't really say I had a lot of exposure to it either. I'm wondering if Livgren had a hand in this new album? Any Petra fans have a rec on a stand out earlier album?

I have Proto-Kaw, Before Became After and it was just so so at first but the more I listened the more I really grew to like it.