The FW has a walking foot that will work with the low shank and narrow feed dogs. April's 30 shop carries them. Unfortunately, the 301 has no great walking foot on the market. Yes, there are manufacturers that claim they will fit, and yes, they do...but ALL and I repeat ALL of them have too wide feed dogs. They don't align properly with the machine feed dogs. So, yes, you can spend $25 on the foot and use it, but it doesn't do what a walking foot is engineered to do.
I free motion quilt all the time with my 5, 301's. I love it for FMQ work. For straight, walking foot, quilting work I use one of my other machines.