They're both worth trying, although with the new book I'm sure you've got about a decade worth of programs to try now. I've had BBB (Forever variant) break through some plateaus one time, but not so much the other time. I've heard of some people on Pervertor, but not their results yet. It looks really cool though, good size/strength blend. So if you just want size, try BBB first, if you want more of a strength component as well, Pervertor. Just remember to keep the zerchers out of it! If you go with Pervertor let us know how it goes in a few months, it'd be nice to get some feedback on that one. (The 3rd week looks kind of scary but I'm a wuss, good luck).