I've seen some quilters (Leah Day, for one) "modify" their FMQ foot (like the one above) by cutting out the front third of the oval for better visibility. I also have a metal FMQ (janome) that is made with a gap in the front part of the oval (so it is open). I have seen videos of it being done with no foot at all, but haven't tried it myself. I'd say take it for a try and see how you do.
Here's the video of how Leah modifies the generic FMQ foot. The part where she clips the plastic oval begins at about 4:50 into the video, althoug it's worth it to watch the whole thing.
http://www.daystyledesigns.com/freemotionfoot.htm