I did a bit more work on the grill block tonight. It doesn't look much different, but its a lot smoother. After the first two full coats of bondo, I did a couple more patch coats where it was low and to fill in the edges nicely. After it looked pretty good I shot another guide coat over it to make sure the low spots were all gone and it sanded out pretty nice. Then, I changed my 36 grit sandpaper over to 220 (its a big step, but it was all I had). I started sanding the whole thing down sanding out all the scratches from the 36 grit sandpaper and getting it ready for priming. After getting it mostly smoothed out, I found another problem right in the middle tip rounded area. So, I mixed up another small batch of bondo and slapped some on.
Here is another shot. It looks pretty much the same as before, just a few more blotches of bondo sanded down.
