Of course it's doable. As to which method, that would depend on your skills, the size of the piece, how tight your fan curve is, and probably a bunch of other factors. I have successfully used a walking foot on rather large and loose curves on a smaller quilt or one with a lower loft batting. Work out your strategy, and maybe even diagram it out and post it above your machine for easy reference. I'm pretty confident as a FMQer now, and I'd probably go that route most times, but not with the expectation of following any lines perfectly -- I'm much more of a doodle and improvise quilter.