On a smooth surface you should be still be able to use the shove and scoop method that you are speaking of. Try opening the web of your fingers wider and shoving faster. Another method using the same two fingers is to begin the trick just as the shove and scoop method but when the top nears the web of your fingers, curl only your index finger up (as if calling someone to you) to push the top into the palm of your hand. With a bearing top you can kind of cheat by using both of your fingers to pop the top into the air just a tad and then quickly move you hand under the top. Don't forget to keep your hand nice and flat, palm completly open, once the top is in your hand.
Good luck, and have fun!
