I always recommend to everyone that they build their first PBF according to plans. You will have absolutely so much fun with it that you will be hesitant to make any major mods. But atleast you will have a reference point and a feel for how good the original flies. Just remember the key to the best PBF's are keeping it light. As long as it ends up around 2.5lbs with a plain bearing engine you will be happy. Just my 2 cents worth.