Hey guys, here's the deal: I've been working for more than a year with an UK client in a very very competitive niche with some very competitive keywords. Basically, he was ranking for some major terms on 1-4 spots, all was working great etc. In September we and a few other competitors got a penalty (although nothing was mentioned in GWT) we assume for aggressive link building. Went from no1 to no9, from no2 to page 3 and so on, we went way down. We continued our work with guest blogging, chose only top-notch sites to build links on, no networks etc. Yesterday, something really odd happened: one of our competitors which got the penalty as well did a 301 redirect from his old domain to a new, related one and he regain ALL his rankings (he came back from almost nowhere to way above us). Now....I really would need some opinions from those who have tried this "method": is this just the so-called "honeymoon" or he really managed to trick Google and regain his positions after a penalty?