those tables are horribly thin veneers. nice job being careful not to remove too much of it. the poly finish should hold it together.
with a little water damage, these tables separate badly. so it's ok to go a little thick with the poly and do many coats but make sure it's dry before applying each additional coat.
i'm going to take a stab at making a solid wood top for one at some point, once i find the right piece of wood. i'll likely use mahogany just because of the lighter weight.
looks great troy! nice job!