Seam Line Removal, 101

Method 2 :
If there is an area(s) on your build that is too small to get any sanding implements into, make sure that the gap is evenly filled (as before) and take a sharp blade and gently slice away the glued area until it has completely gone.






Below is a picture of how my piece ended up. If you cut too deep, add some putty to build the area up flush again, and gently re-cut the piece with the sharp knife. If you have one visibly flat area where you shave off the glue, gently rub the blade in a wider area to even out the shape better. If possible, sand with a fine grit sandpaper to get rid of the uneven edges.