I sometimes use my grandfather's Bailey #6 for jointing and it works fine. He carried it for decades as a house carpenter in New Jersey--mainly because he literally carried it to the jobsites everyday in his tool box and it definitely weighs less than a #7 or 8. He kept it sharpened like a smoothing plane, with just the tiniest bit of camber, and used it for facing and jointing. He also had an iron rabbet and a block plane. I would have thought that he had a jack or a smoother as well, but as far as I can tell he just used those three planes for everything.
I use an Ohio Tool made KK5 for shooting, but I have been considering using the #6 because of the weight.