I haven't tried floats. The plane makers style would have too short a cutting stroke to be useful for anything but working a small section on a limb.
There are auto industry body files that have a shallow float like cut. They are longer like a rasp and have been used by the late, great Glenn St Charles, of Billets to Bows, book and video. They are supposed to give a cleaner cut than a rasp. I haven't used one yet either.
They are much cheaper than floats which are only available from specialist woodworking tool manufacturers.