I sew on 301s every day. Best machine ever for piecing. I used to FMQ on them until I bought a longarm. Oil every 8 hours of sewing. Use Tri-flow oil. Keep it clean from lint. I use Organ titianium needles, usually a 90/14, but smaller for paper piecing. I replaced the regular bulb with an LED and it stays cool. I just love, love them. Make sure the bobbin case finger is engaged in the needle plate slot when you take off the needle plate. It is a direct drive machine, so smooth, strong and easy to use!