If if works without a darning foot for you then I'd go for it. Most people do use a darning foot for FMQ but if you are happy with your results then that's all that matters. As I said in my earlier reply there is a spring needle that you could use without a foot that works well for FMQ. I haven't tried it with my vintage machines but if the needle size fits that would be another option for you. If you are an ebayer then you could check your options there for a foot for your specific Singer. That said, there are always ways we can make due with what we have as you have referenced.