The second wooden plate you made will most likely wreck your table.
We have post after post describing tables cracking, splitting, buckling etc. because the wood cannot move. Even seasoned kiln dried wood will move with changes in the humidity.
The pedestal had elongated holes which were made purposely to allow for this wood movement.
If you had screwed this stand directly to your table top and only snugged the screws you will be much better off.
If you don't have time to do it right the first time, when will you have time to do it over?