Those Makita folding tables aren't the most stable, (locking the legs helps...) I've 4 of them- and I do use one for my portable router table set-up.
You gotta love theses homemade lifts, all these folks having to make up for the poor engineering of the routers themselves.
One plus for choosing the OF1400 for a table unit is it's stability- the locking handle binds both posts...unlike most routers that only lock to one post.