Maybe I am wrong but I think S3D is slowing down the perimeters by the percentage you input in the profile for every successive perimeter.
Meaning this:
If I put 4 perimeters on a part and I drop to 50% under-speed for perimeters, the first inside perimeter slows down to 50%, then the next one slows down to 50% of 50%, and then the third slows down to 50% of 50% of 50%, etc etc.
If I have more than 1 perimeter, I only want it to slow down a single time to 50% and run them all that speed. Don't slow down more for every extra perimeter I have. Anybody else experiencing this?