I don't know abt your machine models, but I own a Viking, bought it in 1974, runs like a champ. if it goes under the needle, I can sew it. I have a second gear to slow it down. Make a lot of Denim quilts and never broke a needle. I sure would like to be able to afford a light weight.... :)I know there are a lot of great machines out there, but I have what I have and at my age don't forsee a new one with the fancy designs. :(