Thanks for all your input guys... I really appreciate the advice. From many of the posts I've been reading here, it seems many of you run hopped up saws. Now, I'm far from a professional user, and have visited sites like Walker's. Whichever saw I get, Stihl or Husky, do I really need the *FULL* treatment, like posted on Walker's site which costs $200??? BTW- are the saws listed for sale on Walker's site already given the treatment, or are they stock and modifications are on top of that??? Or for my homeowner use, would just a modified muffler suffice? It appears to me that are good gains from just a muffler modification, and I wouldn't need to send the saw away. Also, in terms of modifications, how does that affect warrantieson saws? E.g. if I mod the muffler, and I need to get the saw serviced, should I put on the stock muffler? Or if I went full mod, does that affect things? Thanks again!