Lawnguy Its a slight possibility that i am wrong due to the year you are talking about but now a days the 2 digits are residential and the 3 digits are commercial(55 Rancher is a good example, 257 is a good example of the commercial one... and by the way those rule.) I own a 45 I told the dealer, of just husky products, that i wanted a saw that would last a long time and could cut constantly he said the minimum i would want to buy is the 45. It was a great deal cuz it was a 97(in late summer 99) and was the only one left. This thing runs great starts after like 3 pulls (2 on choke)... i havent brought it into the shop yet. <br> I know that this is gonna sound kind of contradictirary but when i saw people where bad mouthing husky saws i had to put in my (very)limited opinion. I have always had a funny feeling about the husky trimmers cuz they just dont look commercial. Also ive never seen them in the feild. As far as the saws i have never seen any other kind of saw. Good luck with the trimmers everybody!