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Trademark "sprue goo". Also "sproo goo".I found a few seams that I felt I needed to deal with. Nothing horrible, just a bit looser than I cared for. I found the previously mentioned gun bays seams, then we include the boom / wing seams then the back of the radiators on each boom (first 2 pictures). I also dealt with the seam between the boom radiators to remove that seam as well.
I used my homemade "sprue goo". This stuff is just some left over Tamiya thin cement with bits of cut up Tamiya spurs. Picture 3.
I simply added some goo to each seam that concerned me, let it set up and start drying. I then used my glass files to remove the excess goo. The remaining pictures show the seams filled in.
Next steps will be to apply Mr Surfacer 1500 black and double check the seams. I will cut in new seams as needed (gun bay doors for sure). I plan on the next 2-3 days of finishing up dealing with these seams.