[MMI Enterprises]

Do we know if deck has screws or nails or if they are popped. Would be job of the professional to come check it out to see if deck is suitable candidate for sanding or not. A pro floor guy usually has a few different types of machines and likely has something they can throw at the rough jobs.
After palm nailing the nails just under surface level, I would go for it with the swing machine. Extreme warping creating unlevel transition from one board to the next is my main worry.