I cut my pieces and spent hours sanding to get a smooth finish on each board. After the paint/finish I assembled the pieces in the house so I could use the floor as my flat even surface. I read quite a few comments on Facebook about the tables ending up with a wobble so here is how I avoided that.
Warning! When choosing the boards for this project, be picky. Make sure the 2 pieces in the middle of the table top are flat and not bowed or warped. These are the pieces that the legs are mounted against. With any variation the table will wobble. After screwing the table top boards to the table supports I attached the legs to the table support with ONE screw first. Next I flipped the table over onto a flat surface (top side up) to adjust the legs and then I secured them in place with the remaining screws. Note: I used my legs wrapped around the table legs to hold in place while I was putting in the rest of the screws. My table does NOT wobble, YAY! Everything else went smooth and I love the table.