Is it possible to do the sac move on hard wood like a table. I know that the sac move only works on carpet 4 me because when i spread the cards out on a table it reveals them 4 some reason. Is there a good technique i can use?

Yeah, get a close-up pad. Lol. Also, take this subject to the penguin's only.

The close up pad is great. Keeps the cards clean too.

In the absence of a close up pad, you can also use the back of a spiral notebook, or if it is available you can always use a table cloth as well.