I was having difficulty figuring this out. I have an image with 7 600s DSLR subs, one having a satellite trail. Turning on Large-Scale Pixel Rejection (reject high) at the defaults of 2 and 2 seemed to do nothing, and raising the values higher yielded no improvement. I eventually found the secret sauce for this image to be lowering layers (high) to 1 and increasing growth (high) to 7. This, at last (and with default sigmas), completely eliminated the satellite trail in the integrations.