fly with fins a good idea?

I rarely use fins at all, but today I did a fly only set with zoomers because I am struggling with learning proper fly. It really gave me a good feel for the timing, rythm and proper body position. Does anyone else fly with zoomers? If so what percentage? I was thinking of doing at least one set a week with the zoomers. Does anyone who has completely mastered fly continue to use fins?