I am changing over to glass filled nylon 6/6 from a standard nylon due to a UL analysis for RTI. They are forcing us to change to a UL listed material so that the over all product will comply to their standards. So my problem is that the part is insert molded over a 1/2" copper rod and now i am getting some small non fill areas. I have been working with a mold flow program now and it does not pick up on the actual non fill areas that are happening in reality, so I am interested in knowing if anyone has experience in mold analysis programs and how to use as many "clues" as possible to see if my new mold changes will help to eliminate the non fill areas of the part.Click image for larger version.  Name: Possible_Wall_Thickness_Change_Flat_08AUG17.jpg  Views: 15  Size: 115.7 KB  ID: 216. So if the pictures I have uploaded work they should show changes.

Thanks in advance....