I just got my 036 pro today. This thing is mint. Looks like it was only used once. It came with a brand new 24" STIHL sprocket tip bar and two full chisel chains. This bar is really overkill for what I will be using the saw for and is probably a little large for the saw as well. It is a 3/8" .050. I will probably sell the bar and replace it with an 18" bar. The thing is I also have a brand new 18" bar and chain already, but this is an .325" .063. I can't return it, because the package was opened by me. I can either swap out the rim sprocket on the 036 to to a .325 and run this 18" bar or buy another bar and chain combo for the 3/8" .050. Then I would sell both of the ones I already have. My question is this. Is there a real noticeable difference between the two sizes 3/8 or .325. This saw will become my main firewood saw. I cut about 5 to 6 full cords a year for partial home heating. You guys may find it funny, but I have been using a homelite vi super 2 with a 16" bar prior to this. The 036 pro will probably impress the he!! out of me. I am just tired of having to spend so much time cutting with the smaller saw. I decided to spend some cash and get a real saw to make that part of the work easier.